Compilation
Helichrysum odoratissimum

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Name

Identification
Helichrysum butaguense De Wild. [family ASTERACEAE ] Verified by Not on sheet, Helichrysum odoratissimum (L.) Sweet [family ASTERACEAE ] (stored under name); Verified by Not on sheet,
Related name
  • Achyrocline hochstetteri
  • Helichrysum engleri
  • Panicum hordeaceum
  • Panicum crus-corvi
  • Helichrysum hochstetteri
  • Gnaphalium pedunculare
  • Helichrysum odoratissimum
  • Gnaphalium odoratissimum
  • Helichrysum rosmarinum
  • Helichrysum unrecorded
  • Helichrysum butaguense

Flora

Entry for HELICHRYSUM stenopterum DC. [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, page 315, (2002) Author: H.J. BEENTJE
Names
HELICHRYSUM stenopterum DC. [family COMPOSITAE], Prodr. 6: 201 (1838); Moeser in E.J. 44: 241 (1910); Mesfin & T. Reilly in D.J.N. Hind et al. (eds), Adv. Comp. Syst.: 427 (1995). Type: South Africa, Natal, between Umkomaas and Umzimkulu Rivers, Drège 5011 (G-DC, holo., BM, K!, P!, iso.)
Gnaphalium stenopterum (DC.) Sch. Bip. [family COMPOSITAE], in Bot. Zeit. 3: 172 (1845)
Achyrocline hochstetteri A. Rich. [family COMPOSITAE], Tent. Fl. Abyss. 1: 429 (1848); Oliv. & Hiern in F.T.A. 3: 339 (1877); Hoffm. in P.O.A. C: 409 (1895). Type: Ethiopia, Mt Kubbi near Adwa, Schimper 237 (BM, K!, P!, UPS, syn.) & 1058 (BM, K!, P!, syn.)
Helichrysum hochstetteri (A. Rich.) Hook.f. [family COMPOSITAE], in J.L.S. 6: 13 (1861); Moeser in E.J. 44: 241 (1910); T.T.C.L.: 151 (1949)
Gnaphalium hochstetteri (A. Rich.) Sch. Bip. [family COMPOSITAE], in Schweinf., Beitr. Fl. Aethiop.: 149 (1867)
Helichrysum odoratissimum [family COMPOSITAE], [sensu F.P.S. 3: 35 (1956); Hedberg, Symb. Bot. Upsal. 15: 201 (1957) pro parte; Lisowski in F.A.C. Compositae, Inuleae: 76 (1989) pro parte, non (L.) Sweet (1826)]
Achyrocline stenoptera (DC.) Hilliard & B.L. Burtt [family COMPOSITAE], in J.L.S. 82: 202 (1981) & in F.S.A. 33, 7 (2): 59, fig. 11/2 (1983); Anderb. in Opera Bot. 104: 149 (1991)
Information
Perennial herb becoming woody at the base, 0.3–1 m high, with scandent or straggling branches to 2 m; many-stemmed, the stems grey-lanate but glabrescent, glandular, strongly aromatic (of pig manure?), with continuous wings 1–2 mm wide. Leaves lanceolate or narrowly lanceolate, 1–12 cm long, 0.2–1.8 cm wide, base narrowing gradually into decurrent stem wings, margins revolute, apex acute, arachnoid-pubescent above but glabrescent, white- or grey-felted beneath, glabrescent in older leaves, glandular; 1–3-veined. Capitula heterogamous, 2.5–3.5 mm long, many together in congested clusters combining to form large terminal corymbose or paniculate inflorescences to 12 cm across; stalks of individual capitula absent; receptacle alveolate, fimbrillate; phyllaries in 2–5 series, lanceolate, imbricate, equalling the florets, the outer pale brown or translucent, the inner distally pale yellow, 1–2.5 mm long, obtuse, the outermost pubescent at base, otherwise glabrous, the inner often with a patch of glands halfway. Outer florets 3–7, tube filiform to cylindrical and slightly widening just below the lobes, 1.2–1.5 mm long, lobes 0.1–0.3 mm long, style 1.5–2 mm long; inner florets 0–2(–3), tube cylindrical or narrowly infundibuliform, 1.6–2 mm long, lobes 0.2–0.3 mm long, anthers 0.8–1 mm long, style 1.9–2.2 mm long. Achenes ellipsoid, 0.4–0.6 mm long, minutely papillose; pappus white, 1.5–2.5 mm long, coherent at base.
Range
DISTR. U 1–4; K 1–7; T 1–7
Altitude range
600–2800 m
Distribution
UGANDA Karamoja District Mt Kadam summit, May 1939, A. S. Thomas 2936!;KENYA Turkana District Murua Nysigar, Oct. 1962, Mbonge 30a!TANZANIA Lushoto District Shagayu Forest Reserve, Apr. 1962, Semsei 3460!;UGANDA Kigezi District Kayonza Forest Reserve, Aug. 1960, Paulo 632!;UGANDA Masaka District Bunado, Aug. 1971, Lye & Katende 6601!KENYA N Nyeri District Ontulili Forest Station, Sep. 1970, Kokwaro 2325!;KENYA Kiambu District Iherereka, Jan. 1952, Kirrika 161!TANZANIA Kondoa District Bereku Forest Reserve, May 1988, Ruffo & Sigara 2954!;TANZANIA Mbeya District Kiwira R., May 1973, Shabani 1035!
Distribution (external)
; Nigeria
Cameroon
Congo (Kinshasa)
Rwanda
Burundi
Sudan
Ethiopia
Zambia
Mozambique
Zimbabwe
South Africa
Yemen
Notes
H. stenopterum and H. odoratissimum have been confused quite often, but the presence ofªflorets and the lower number of hermaphrodite florets distinguishes H. stenopterum. Knox (pers. comm.) feels an altitudinal sex ratio change might be involved. I feel dubious about merging these two taxa at varietal level, and for the moment prefer to leave them as they stand.

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