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.
National distribution:	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:	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
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