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Electronic Flora of South Australia species Fact Sheet

Family: Asteraceae
Helipterum humboldtianum

Citation: DC., Prod. 6:216 (1838).

Synonymy: Helichrysum humboldtianum Gaudich., Voy. aut. Monde (Bot.) 465, t. 88 (1830); Pteropogon humboldtianus (Gaudich.) F. Muell., Linnaea 25:415 (1853); Helipterum haigii F. Muell., Fragm. Phyt. Aust. 10:107 (1877).

Common name: None

Description:
Annual herb 10-50 cm high; stems few, erect, simple or few-branched, cobwebby; leaves alternate, linear to narrowly oblanceolate, hardly amplexicaul, acute, 1-3 cm long, 1-3 mm wide, dark-green, sparsely cobwebby especially in the axils; margins recurved.

Capitula numerous, subsessile in subglobose clusters which are solitary or grouped in a corymb; involucre cylindrical, 6-7 mm long, c. 5-seriate, cobwebby at the base; outer bracts with oblong scarious claws and yellow acute laminae to 1.5 mm long; inner bracts with linear scarious claws and yellow obtuse oblong laminae 2-3 mm long, the innermost series spreading; receptacle convex, minute; florets 8-14.

Achenes narrow-obovoid, c. 1.5 mm long, brown, finely pubescent to glabrous; pappus bristles 9-16, shortly connate, c. 4 mm long, long-plumose at the base, more shortly plumose above, persistent.

Published illustration: Blackall & Grieve (1975) How to know Western Australian wildflowers, 4:t. 15.

Distribution:    W.Aust.

Conservation status: native

Flowering time: Aug. — Nov.


SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia

Biology: No text

Author: Not yet available


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