Pleiotaxis angustirugosa C. Jeffrey

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Habit
Ruderal area between village and open dambo grassland
Luampa area, Luampa District
Apr 2023
Photo: Nick Wightman

Leaves
Ruderal area between village and open dambo grassland
Luampa area, Luampa District
Apr 2023
Photo: Nick Wightman

Flowers
Ruderal area between village and open dambo grassland
Luampa area, Luampa District
Apr 2023
Photo: Nick Wightman

Habit
Miombo woodland
Kalema area, Nkeyema District
Apr 2023
Photo: Nick Wightman

Inflorescence
Miombo woodlandd
Kalema area, Nkeyema District
Apr 2023
Photo: Nick Wightman

Flower
Miombo woodland
Kalema area, Nkeyema District
Apr 2023
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:
Common names:
Frequency:	Occasional to locally common
Status:	Native
Description:	An erect suffrutex, to c. 1 m. tall, from a ?woody rootstock. Stems annual, 1-several, sericeous-lanate, sparsely branched and leafy near the apex, simple and leafless below, becoming woody. Leaves sessile discolorous, markedly bullate, briefly stem-sheathing at the base, mostly 4.5–19 x 0.4–0.7 cm., linear; acute at the apex; margins revolute, serrate; upper surface bullate and ± sparsely lanate-pubescent, under surface densely greyish or brownish araneose-sericeous. Capitula many, usually terminal on branches with 2–3 subsidiary capitula in axils below, on short or long stalks. Involucres mostly 20–25 x 15–20 mm., obconic-campanulate. Phyllaries green often purple-tinged, appressed imbricate, thinly coriaceous, glabrous outside, margins hyaline often purple-tinged, from 2 mm. long and ovate outside increasing to c. 23 mm. long and becoming narrowly lorate inside; middle phyllaries to c. 3.5 mm. wide, ovate-oblong, rounded at the apex. Corollas red, up to c. 24 mm. long, with a long slender tube abruptly dilated into a short cylindric deeply narrowly lobed limb which exceeds the pappus and involucre, glabrous; corolla lobes up to c. 6 mm. long, linear. Achenes ?6–10 mm. long, narrowly-cylindric, obscurely many-ribbed, densely appressed hispid; pappus of copious barbellate setae to c. 15 mm. long.
Type location:	Zambia, Chavuma
Notes:	Little known species but so far only recorded from Western Zambia. Capitula many
Derivation of specific name:	angusterugosa: narrowly wrinkled, presumably referring to the narrow but puckered to wrinkled leaves.
Habitat:	In miombo woodland on Kalahari Sand
Altitude range: (metres)
Flowering time:	Apr - May
Worldwide distribution:	Zambia.
FZ divisions:	B
Zambian distribution (Provinces):	Nw,W,S
Growth form(s):	Perennial.
Endemic status:	Endemic
Red data list status:	Data deficient
Insects associated with this species:
Spot characters:	Display spot characters for this species
Images last updated:	Thursday 27 July 2023
Literature:	Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 32. Pope, G.V. (1992). Compositae Flora Zambesiaca 6(1) Page 17. Wild, H. (1972). The Compositae of the Flora Zambesiaca area. 3. Mutisieae. Kirkia 8(2) Page 198.

Other sources of information about Pleiotaxis angustirugosa:

External websites:

African Plants: A Photo Guide (Senckenberg): Pleiotaxis angustirugosa
African Plant Database: Pleiotaxis angustirugosa
BHL (Biodiversity Heritage Library): Pleiotaxis angustirugosa
EOL (Encyclopedia of Life): Pleiotaxis angustirugosa
GBIF (Global Biodiversity Information Facility): Pleiotaxis angustirugosa
Google: Web - Images - Scholar
iNaturalist: Pleiotaxis angustirugosa
IPNI (International Plant Names Index): Pleiotaxis angustirugosa
JSTOR Plant Science: Pleiotaxis angustirugosa
Mansfeld World Database of Agricultural and Horticultural Crops: Pleiotaxis angustirugosa
Plants of the World Online: Pleiotaxis angustirugosa
Tropicos: Pleiotaxis angustirugosa
Wikipedia: Pleiotaxis angustirugosa