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Drosera capensis

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Drosera capensis

Drosera capensis (), the Cape sundew, is a perennial rosette-forming carnivorous herb in the flowering plant family Droseraceae. It is native to the Cape region of South Africa, where it grows in permanently wet, nutrient-poor habitats. Its elongated, roughly oblong leaves are held semi-erect and have a distinct petiole. It is quite a variable plant with several recognised growth forms, some of which form a short stem. As in all sundews, the leaves are covered in stalked glands that secrete sticky mucilage. These attract, trap, and digest arthropod prey, obtaining nutrients that supplement intake from the substrate in which the plant grows. D. capensis has dramatically mobile leaves that curl around captured prey, preventing its escape and facilitating digestion. First recorded in the late 17th century, D. capensis was one of the five Drosera species included in the first edition of Carl Linnaeus' Species plantarum. A relatively large, 'showy' species that flowers readily and is considered very easy to grow, it was cultivated in Europe as a curiosity from the mid-18th century and is now one of the most widely-grown sundews. It has also been extensively studied, including as a potential source of bioactive compounds of pharmacological interest, and was the first sundew to undergo whole-genome sequencing. Although often uncommon and localised in its native range, it has become naturalised in several countries following deliberate introductions, and is listed as an invasive species in New Zealand.

Tables

Drosera capensis forms informally described by Gibson (2020) · Characteristics › Habit › Growth forms
Wide-leaved
Wide-leaved
Form
Wide-leaved
Habit
Robust
Leaves
Green, underside sparsely covered with eglandular hairs
Petiole
>3 mm wide, about 60% width of lamina
Lamina
>3 mm, up to 8mm wide
Flowers
Large, ~3 cm, usually dark purple
Stigmas
Irregularly obovate to elliptic, widening conspicuously from terete style segments
Stem
Conspicuous, to 15 cm
Localities
Western part of Western Cape: Silvermine Nature Reserve; Vogelgat Private Nature Reserve; former Bergvliet Farm
Narrow-leaved
Narrow-leaved
Form
Narrow-leaved
Habit
Typical
Leaves
Olive green to reddish, to about 12 cm long, underside sparsely covered with eglandular hairs
Petiole
<=3 mm
Lamina
<=3 mm, similar length to petiole and up to twice the width
Flowers
~2 cm, pale purple
Stigmas
Terete to narrowly ovate
Stem
None, or up to 5 cm in older plants
Localities
Typical form in the wild
Red-leaved
Red-leaved
Form
Red-leaved
Habit
Typical
Leaves
Vibrant red under bright illumination, underside with few eglandular hairs
Petiole
As narrow-leaved
Lamina
As narrow-leaved
Flowers
Up to 2 cm, style segments dark purple
Stigmas
Irregularly ovate
Stem
As narrow-leaved
Localities
Primarily Gifberg, but also Travellers Rest, Koue Bokkeveld plateau and Table Mountain
White-flowered
White-flowered
Form
White-flowered
Habit
Typical
Leaves
Golden green; tentacles with colourless stalks and green to pale red glands
Petiole
As narrow-leaved
Lamina
As narrow-leaved
Flowers
10–14 mm, white petals
Stigmas
Moderately expanded
Stem
(not described)
Localities
Appears to have emerged spontaneously in cultivation
Mini
Mini
Form
Mini
Habit
Compact
Leaves
Olive-green, congested
Petiole
1.5–2 mm
Lamina
3–4 mm
Flowers
Up to 2 cm, dark purple, on disproportionately tall scape
Stigmas
(not described)
Stem
At most a few cm long
Localities
High mountain areas near Ceres, Bainskloof (Matroosberg), upper slopes of Baviaanskloof between 1000 and 1800 m
Traveller's Rest
Traveller's Rest
Form
Traveller's Rest
Habit
Giant
Leaves
Green or fully red, very large (rosettes to ~30 cm)
Petiole
Longer than lamina, about 2 mm wide
Lamina
About 3 mm wide
Flowers
About 1.5 cm, pale purple, style segments terete
Stem
(not described)
Localities
Banks of Doring River at Traveller's Rest, east of Clanwilliam
Paddle-shape leaved (1)
Paddle-shape leaved (1)
Form
Paddle-shape leaved (1)
Habit
Sparse, reminiscent of D. anglica
Leaves
Green
Petiole
~2 mm
Lamina
~6 mm
Flowers
(not described)
Stigmas
(not described)
Stem
(not described)
Localities
Very wet site at Gydo Pass near Ceres, ~1000m
Paddle-shape leaved (2)
Paddle-shape leaved (2)
Form
Paddle-shape leaved (2)
Habit
Open with distinct internodes
Leaves
Green
Petiole
(as previous?)
Lamina
(as previous?)
Flowers
(not described)
Stigmas
(not described)
Stem
Conspicuous
Localities
Bainskloof Pass, also possibly Waaihoekskloof near Ceres, and Montague Pass.
Paddle-shape leaved (3)
Paddle-shape leaved (3)
Form
Paddle-shape leaved (3)
Habit
Compact
Leaves
To 6 cm long, spirally arranged, underside with abundant eglandular hairs
Petiole
To 1 mm wide
Lamina
To 3 mm wide
Flowers
Up to 1.6 cm wide, petals dark purple
Stigmas
Dark purple, irregularly obovate
Stem
Formed only very slowly
Localities
In cultivation, origin not known
Form
Habit
Leaves
Petiole
Lamina
Flowers
Stigmas
Stem
Localities
Wide-leaved
Robust
Green, underside sparsely covered with eglandular hairs
>3 mm wide, about 60% width of lamina
>3 mm, up to 8mm wide
Large, ~3 cm, usually dark purple
Irregularly obovate to elliptic, widening conspicuously from terete style segments
Conspicuous, to 15 cm
Western part of Western Cape: Silvermine Nature Reserve; Vogelgat Private Nature Reserve; former Bergvliet Farm
Narrow-leaved
Typical
Olive green to reddish, to about 12 cm long, underside sparsely covered with eglandular hairs
<=3 mm
<=3 mm, similar length to petiole and up to twice the width
~2 cm, pale purple
Terete to narrowly ovate
None, or up to 5 cm in older plants
Typical form in the wild
Red-leaved
Typical
Vibrant red under bright illumination, underside with few eglandular hairs
As narrow-leaved
As narrow-leaved
Up to 2 cm, style segments dark purple
Irregularly ovate
As narrow-leaved
Primarily Gifberg, but also Travellers Rest, Koue Bokkeveld plateau and Table Mountain
White-flowered
Typical
Golden green; tentacles with colourless stalks and green to pale red glands
As narrow-leaved
As narrow-leaved
10–14 mm, white petals
Moderately expanded
(not described)
Appears to have emerged spontaneously in cultivation
Mini
Compact
Olive-green, congested
1.5–2 mm
3–4 mm
Up to 2 cm, dark purple, on disproportionately tall scape
(not described)
At most a few cm long
High mountain areas near Ceres, Bainskloof (Matroosberg), upper slopes of Baviaanskloof between 1000 and 1800 m
Traveller's Rest
Giant
Green or fully red, very large (rosettes to ~30 cm)
Longer than lamina, about 2 mm wide
About 3 mm wide
About 1.5 cm, pale purple, style segments terete
(not described)
Banks of Doring River at Traveller's Rest, east of Clanwilliam
Paddle-shape leaved (1)
Sparse, reminiscent of D. anglica
Green
~2 mm
~6 mm
(not described)
(not described)
(not described)
Very wet site at Gydo Pass near Ceres, ~1000m
Paddle-shape leaved (2)
Open with distinct internodes
Green
(as previous?)
(as previous?)
(not described)
(not described)
Conspicuous
Bainskloof Pass, also possibly Waaihoekskloof near Ceres, and Montague Pass.
Paddle-shape leaved (3)
Compact
To 6 cm long, spirally arranged, underside with abundant eglandular hairs
To 1 mm wide
To 3 mm wide
Up to 1.6 cm wide, petals dark purple
Dark purple, irregularly obovate
Formed only very slowly
In cultivation, origin not known
Cultivars of Drosera capensis · Cultivation › Cultivars and hybrids
Drosera 'Albino' Hort. Borret & Farrow
Drosera 'Albino' Hort. Borret & Farrow
Cultivar
Drosera 'Albino' Hort. Borret & Farrow
Description
White flowers, lack of red colouration in the leaves and tentacles
Drosera 'Narrow Leaf' Hort. D'Amato
Drosera 'Narrow Leaf' Hort. D'Amato
Cultivar
Drosera 'Narrow Leaf' Hort. D'Amato
Description
Similar to "typical form" but with narrow lamina and petiole, and more compact, rarely producing a tall stem
Cultivar
Description
Drosera 'Albino' Hort. Borret & Farrow
White flowers, lack of red colouration in the leaves and tentacles
Drosera 'Narrow Leaf' Hort. D'Amato
Similar to "typical form" but with narrow lamina and petiole, and more compact, rarely producing a tall stem
Hybrid cultivars involving Drosera capensis · Cultivation › Cultivars and hybrids
Drosera 'Anemone' Hort. H.Carlton
Drosera 'Anemone' Hort. H.Carlton
Cultivar
Drosera 'Anemone' Hort. H.Carlton
Parentage
D. oblanceolata × spatulata × capensis
Description
Stout rosetted plant with elongate leaves intermediate between 'paddle-shaped' and 'strap-shaped'; very tall inflorescence with pale pink flowers
Drosera 'Hercules' Hort. C.Trexler
Drosera 'Hercules' Hort. C.Trexler
Cultivar
Drosera 'Hercules' Hort. C.Trexler
Parentage
D. capensis × aliciae
Description
Similar in habit to D. capensis but with strikingly broadened leaves that barely reflex, and a tendency to form clumps
Cultivar
Parentage
Description
Drosera 'Anemone' Hort. H.Carlton
D. oblanceolata × spatulata × capensis
Stout rosetted plant with elongate leaves intermediate between 'paddle-shaped' and 'strap-shaped'; very tall inflorescence with pale pink flowers
Drosera 'Hercules' Hort. C.Trexler
D. capensis × aliciae
Similar in habit to D. capensis but with strikingly broadened leaves that barely reflex, and a tendency to form clumps

References

  1. "Stipulae membranaceae, ovatae, concavae, apice in setas nonnullas solutae, ceterum integrae vel subintegrae, 6 — 8 mm l
  2. Entitled Catalogus plantarum Africanum, quas Paulus Hermannus Botanices Professor, ad Caput Bonae Spei olim observavit (
  3. Cited as such by Carl Linnaeus in his description in Species Plantarum, 1753.
  4. Sherard was a friend of Hermann from the early 1680s and received specimens from him, including some from the Cape; he a
  5. "a Dom. Garcin haec cum subsequente ex ejus Herbario mecum est communicata, quae ipsi vocatur Ros Solis Capensis foliis
  6. This is signed 'B. Cole sculp.', possibly Benjamin Cole
  7. This includes D. lusitanica which is now placed in the monotypic genus Drosophyllum and D. roridula which is now Roridul
  8. "In Capitae Bonae Spei Africes ... in montibus rarior"
  9. "Plante de serre froide, d'une curieuse et intéressante structure, à feuilles longuement pétiolées, linéaires-oblongues,
  10. "on peut recommander le Drosera capensis et le Drosera spathulata, parmi les plus intéressants et les plus faciles"
  11. "Ils veulent de l'eau fraiche et pure, un sol tourbeux et fangeux, ils ne souffrent pas le calcaire, c'est-à-dire qu'ils
  12. "Ces deux plantes sont représentées ici, avec leurs fleurs, d'après des spécimens cultivés dans nos serres particulières
  13. "Nous cultivons avec succès les Drosera capensis et spathulala dans la serre chaude, mais à l'extrémité inférieure de la
  14. Drosera capensis
    https://powo.science.kew.org/taxon/321806-1
  15. Drosera of the World Vol. 3
  16. Drosera capensis
    https://cpn.carnivorousplants.org/articles/CPNv49n4p173_180.pdf
  17. Drosera capensis
    https://journals.co.za/doi/epdf/10.10520/AJA00423203_2493
  18. Insect-eating Plants and How to Grow Them
    https://archive.org/details/insecteatingplan0000slac/page/44/mode/2up
  19. The Savage Garden: Cultivating Carnivorous Plants
  20. Drosera capensis
    https://cpn.carnivorousplants.org/articles/CPNv44n4p197_203.pdf
  21. Drosera
    https://cpn.carnivorousplants.org/articles/CPNv47n1p4_9.pdf
  22. Droseraceae
    https://www.biodiversitylibrary.org/page/20851783#page/106/mode/1up
  23. Drosera
    https://www.jstor.org/stable/23643060
  24. Proceedings of the American Philosophical Society
    https://www.jstor.org/stable/986558
  25. Drosera capensis
    https://ui.adsabs.harvard.edu/abs/1981PPlan..53..491B
  26. Drosera capensis
    https://ui.adsabs.harvard.edu/abs/1977PChem..16.1365R
  27. Carnivorous Plants: Care and Cultivation
  28. Drosera
    https://doi.org/10.1134%2FS1021443723603075
  29. Drosera
    https://cpn.carnivorousplants.org/articles/CPNv35n2p49_51.pdf
  30. Biology
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10886480
  31. ISBN
  32. Dionaea muscipula
    https://doi.org/10.1246%2Fbcsj.77.537
  33. Enzyme and Microbial Technology
    https://doi.org/10.1016%2Fj.enzmictec.2007.09.011
  34. Mini Reviews in Medicinal Chemistry
    https://doi.org/10.2174%2F1389557520666201116144421
  35. Drosera
    https://cpn.carnivorousplants.org/articles/CPNv34n3p85_91.pdf
  36. Proteins: Structure, Function, and Bioinformatics
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5026580
  37. Droseraceae
    https://www.biodiversitylibrary.org/item/209567#page/211/mode/1up
  38. Drosera capensis
    https://www.fierceflora.com/drosera-capensis-2/
  39. Journal of the Linnean Society of London, Botany
    https://doi.org/10.1111%2Fj.1095-8339.1920.tb00118.x
  40. Botanical exploration of southern Africa.
    https://www.sanbi.org/wp-content/uploads/2024/05/2010_strelitzia26.pdf
  41. Hercynia N.F.
    https://opendata.uni-halle.de/bitstream/1981185920/95708/1/hercynia_volume_7_2082.pdf
  42. Thesaurus Zeylanicus, exhibens plantas in insula Zeylana nascentes; Inter quas Plurimae novae species, & genera inveniuntur. Omnia Iconibus illustrata, ac descripta / cura & studio Joannis Burmanni, Med. Doct. & Botanices Professoris in Horto Medico Amstelaedamensi
    https://bibdigital.rjb.csic.es/medias/ce/46/34/02/ce463402-3300-476b-8ff1-a3eb5580e431/files/1499.pdf
  43. Historia plantarum : species hactenus editas aliasque insuper multas noviter inventas & descriptas complectens. Tomus tertius
    https://www.biodiversitylibrary.org/item/126270#page/531/mode/1up
  44. Rariorum Africanarum Plantarum, Ad vivum delineatarum, Iconibus ad descriptionibus illustratarum decas octava
    https://bibdigital.rjb.csic.es/medias/9b/97/43/8a/9b97438a-fee5-4819-ab8e-3146e655a211/files/4792.pdf
  45. Species plantarum
    https://www.biodiversitylibrary.org/item/84235#page/296/mode/1up
  46. Eden: or, a compleat body of gardening
    https://www.biodiversitylibrary.org/item/131789#page/354/mode/1up
  47. Descriptiones plantarum ex Capite Bonae Spei, cum differentiis specificis, nominibus trivialibus, et synonymis auctorum justis. Secundum systema sexuale ex autopsia concinnavit Atque solicite digessit
    https://bibdigital.rjb.csic.es/records/item/13844-descriptiones-plantarum-ex-capite-bonae-spei
  48. Flora capensis
    https://www.biodiversitylibrary.org/item/15497#page/368/mode/1up
  49. Prodromus plantarum Capensium :quas in promontorio Bonæ Spei Africes, annis 1772-1775 collegit, pars prior
    https://www.biodiversitylibrary.org/item/1817#page/69/mode/1up
  50. Dissertatio botanica de
    https://bibdigital.rjb.csic.es/records/item/14488-dissertatio-botanica-de-drosera
  51. Flora Capensis :sistens plantas promontorii Bonae Spei Africes, secundum systema sexuale emendatum, redactas ad classes, ordines, genera et species, cum differentiis specificis, synonymis et descriptionibus
    https://www.biodiversitylibrary.org/item/21802#page/340/mode/1up
  52. ISBN
  53. Prodromus systematis naturalis regni vegetabilis, sive, Enumeratio contracta ordinum generum specierumque plantarum huc usque cognitarium, juxta methodi naturalis, normas digesta
    https://www.biodiversitylibrary.org/page/154273#page/324/mode/1up
  54. Annales des Sciences Naturelles, Botanique
    https://www.biodiversitylibrary.org/page/41549140#page/95/mode/1up
  55. Flora capensis :being a systematic description of the plants of the Cape colony, Caffraria, & Port Natal (and neighbouring territories)
    https://www.biodiversitylibrary.org/item/15231#page/132/mode/1up
  56. Belgique Horticole
    https://www.biodiversitylibrary.org/item/137823#page/117/mode/1up
  57. Drosera capensis
    https://www.biodiversitylibrary.org/item/14235#page/152/mode/1up
  58. La Belgique Horticole
    https://www.biodiversitylibrary.org/item/137779#page/175/mode/1up
  59. Drosera capensis
    https://www.biodiversitylibrary.org/item/137825#page/345/mode/1up
  60. Droseraceae. In: Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet
    https://www.biodiversitylibrary.org/bibliography/4635
  61. Carnivorous Plants
  62. Letts Guide to Carnivorous Plants of the World
  63. Drosera capensis
    https://ui.adsabs.harvard.edu/abs/2012Telop..14...89J
  64. International Carnivorous Plant Society
    https://www.carnivorousplants.org/cp/cultivars
  65. Drosera capensis
    https://www.rhs.org.uk/plants/150811/drosera-capensis-albino/details
  66. Drosera capensis
    https://www.rhs.org.uk/plants/101332/drosera-capensis-narrow-leaved/details
  67. IUCN Red List
    https://www.iucnredlist.org
  68. Drosera capensis
    https://redlist.sanbi.org/species.php?species=1776-8
  69. Global Ecology and Conservation
    https://ui.adsabs.harvard.edu/abs/2020GEcoC..2401272C
  70. Carnivorous Plant Newsletter
    https://doi.org/10.55360%2Fcpn522.af323
  71. Drosera capensis
    https://pierpestregister.mpi.govt.nz/pests-of-concern/pest-details?id=90609
  72. New Zealand Journal of Botany
    https://ui.adsabs.harvard.edu/abs/2004NZJB...42..797H
  73. Drosera capensis
    https://www.tiakitamakimakaurau.nz/protect-and-restore-our-environment/pests-in-auckland/pest-search/drocap/
  74. Carnivorous Plant Newsletter
    https://cpn.carnivorousplants.org/articles/CPNv17n1p15_19_21.pdf
  75. Plant Pono
    https://plantpono.org/hpwra/drosera-capensis/
  76. A Global Compendium of Weeds
    https://www.researchgate.net/publication/313645439
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