Compilation
Ageratinastrum glomeratum
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Name
Identification
Isotype of Ageratinastrum glomeratum Mattf. [family ASTERACEAE ] Verified by Not on sheet, Brachythrix glomerata (Mattf.) C.Jeffrey [family ASTERACEAE ] (stored under name); Verified by Jeffrey C., 1987
Related name
- Brachythrix glomerata
- Ageratinastrum glomeratum
Flora
Entry for BRACHYTHRIX glomerata (Mattf.) C. Jeffrey [family COMPOSITAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, Part 1, page 1, (2000) Author: H. J. Beentje, M.Sc., Ph.D., F.L.S.
Names
BRACHYTHRIX glomerata (Mattf.) C. Jeffrey [family COMPOSITAE], in K.B. 43: 270 (1988); G.V. Pope in F.Z. 6: 177, t. 29a (1992); Lisowski in Fragm. Flor. Geobot. 37: 350 (1992). Type: Tanzania, Iringa District, Lupembe, Likanga, Pori, Schlieben 420 (B†, holo., BR!, iso.)
Ageratinastrum glomeratum Mattf. [family COMPOSITAE], in N.B.G.B. 11: 412 (1932)
Brachythrix brevipapposa subsp. brevipapposa [family COMPOSITAE], Wild & G.V. Pope in Kirkia 11: 27 (1978); Kalanda in B.J.B.B. 56: 386 (1986). Type: Zambia, Mambwe, Richards 12749 (SRGH, holo., K!, M, iso.)
Information
Perennial herb 30–170 cm tall, with one to several annual stems from a short woody rootstock; root-crown pale brown-lanate; roots long, spreading, fleshy. Leaves sessile, lanceolate to broadly ovate or obovate, 3–15.5 cm long, 0.8–7 cm wide, cordate, broadly cuneate or cuneate-attenuate at the base, obscurely to coarsely serrate, apex acute, scabridulous above, scabridulous to shortly finely crispate-tomentose beneath. Capitula in terminal or terminal and upper axillary compact to lax scorpioid corymbiform cymes, shortly pedicellate, solitary to densely clustered with ascending crispate hairs; involucre ovoid to obconic-cylindrical, 6–11 mm long, 2.5–10 mm in diameter at flowering time; phyllaries 3–5-seriate, lanceolate, 2–8.5 mm long, outer and median usually recurving at least at the apices, thinly pubescent, darker in centre towards the apex and purplish at the margins in upper part; inner purplish and fimbriate-pectinate on upper margins. Florets many; corolla 6.5–7.5 mm long, purple or mauve, lobes 1.5–2.5 mm long, with stiff hairs at the apex and often with fine hairs along their length. Achenes prismatic (3–)4-angled, 2.2–3 mm long, glabrous or almost so; pappus double, outer persistent, membranous, coroniform, lacerate, 0.4–0.6 mm long, inner of brown caducous flattened barbellate setae 1.5–2 mm long. Fig. 54/1–3.
Range
DISTR. T 4, 7, 8
Altitude range
1200–2200 m
Distribution
TANZANIA Ufipa District Tatanda Mission, Feb. 1994, Bidgood et al. 2425!TANZANIA Iringa District 13 km on Makambaku–Iringa road, Mar. 1972, Magogo 283!TANZANIA Songea District Matengo Hills, Miyau, Mar. 1956, Milne-Redhead & Taylor 9039!
Distribution (external)
; Zambia
Malawi
Mozambique
Notes
A very variable species, especially in the size and degree of aggregation of the capitula and the degree of recurvature of the phyllaries.