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Pleiotaxis rogersii
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Habit
Brachystegia woodland
Nsumbu National Park
May 2020
Photo: Nick Wightman
Flower
Brachystegia woodland
Nsumbu National Park
May 2020
Photo: Nick Wightman
Flower
Brachystegia woodland
Nsumbu National Park
May 2020
Photo: Nick Wightman
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Species details: Click on each item to see an explanation of that item (Note: opens a new window)
| Synonyms: |
Pleiotaxis davyi S. Moore Pleiotaxis pulcherrima var. angustifolia sensu De Wild. |
| Common names: | |
| Frequency: | Occasional |
| Status: | Native |
| Description: |
Slender erect suffrutex growing from a woody rootstock; stems annual, 1-several, 30-135 cm. tall, unbranched or occasionally branching above, leafy, softly finely hairy; leaves discolorous, sheathing stem at the base, 5-16 x 0.4-2 cm., linear-elliptic to narrowly lanceolate, tapering acute to somewhat attenuate at apex, cuneate and subsessile to subauriculate at base, sometimes narrowing to a winged petiole-like midrib c. 10 mm long before grading into cylindrical or narrowly funnel-like sheath c. 20 mm. long, margins finely sharply serrate with serrations becoming linear teeth c. 3 mm. long towards base, upper surface glabrous, lower surface greyish hairy; capitula solitary and terminal or 2-4 on short to long stalks; involucres mostly 14-20 x 8-14 mm. obconic-campanulate; phyllaries appressed sheathing, outer sometimes extending briefly onto stalk, white hairy to glabrescent outside, margins narrowly reddish-tinged hyaline c. 3 mm. long and narrowly ovate outside, increasing to c. 18 mm. long and lorate-lanceolate inside; middle phyllaries to 4.5 mm. wide, narrowly lovate and rounded to obtuse at apex; inner phyllaries narrower; florets numerous; corollas bright to deep red, up to 18 mm. long with a long slender tube abruptly dilated into a short cylindric deeply narrowly-lobed limb which exceeds the pappus and involucre, glabrous; achenes 7-8.5 mm. long, narrowly cylindric, obscurely narrowly many-ribbed, densely hispid; pappus of copious subplumose setae 9-12 mm. long. |
| Type location: |
DRC |
| Notes: | |
| Derivation of specific name: | |
| Habitat: | Miombo and Marquesia woodlands, sometimes in mushitu. |
| Altitude range: | |
| Flowering time: | May |
| Worldwide distribution: | DRC and Zambia. |
| Zambian distribution (Flora Zambesiaca): | W |
| Zambian distribution (Provinces): | Nw |
| Growth form(s): | |
| Endemic status: | |
| Red data list status: | |
| Insects associated with this species: | |
| Spot characters: | Display spot characters for this species |
| Content last updated: | Saturday 25 July 2020 |
| Literature: |
Pope, G.V. (1992). Compositae Flora Zambesiaca 6(1) Pages 12 - 15. (Includes a picture). Wild, H. (1972). The Compositae of the Flora Zambesiaca area. 3. Mutisieae. Kirkia 8(2) Page 197. |
Other sources of information about Pleiotaxis rogersii:
External websites:
African Plants: A Photo Guide (Senckenberg): Pleiotaxis rogersiiBHL (Biodiversity Heritage Library): Pleiotaxis rogersii
EOL (Encyclopedia of Life): Pleiotaxis rogersii
GBIF (Global Biodiversity Information Facility): Pleiotaxis rogersii
Google: Web - Images - Scholar
iNaturalist: Pleiotaxis rogersii
IPNI (International Plant Names Index): Pleiotaxis rogersii
JSTOR Plant Science: Pleiotaxis rogersii
Mansfeld World Database of Agricultural and Horticultural Crops: Pleiotaxis rogersii
Plants of the World Online: Pleiotaxis rogersii
Tropicos: Pleiotaxis rogersii
Wikipedia: Pleiotaxis rogersii
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