Electronic Flora of South Australia
Electronic Flora of South Australia
Census of SA Plants, Algae & Fungi
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Electronic Flora of South Australia genus Fact Sheet

Family: Compositae

Citation: L., Sp. Pl. 789 (1753).

Derivation: Greek name of T. porrifolius, from tragos, billy-goat; pogon, beard; referring to the appearance of the pappus.

Synonymy: Not Applicable

Common name: None

Biennial herb with a tap root; stem terete, robust; leaves basal and cauline, alternate, sessile, entire, narrow, parallel-veined.

Capitula pedunculate, solitary or few in a loosely branched terminal inflorescence, homogamous; involucre cylindrical to spreading, uniseriate; bracts narrowly lanceolate, free, equal, herbaceous, imbricate at the base, valvate above; receptacle convex, naked, pitted; florets bisexual, fertile, ligulate; ligules linear, purple; corolla tube narrow-cylindrical, dilated and pubescent at the apex; anthers tailed at the base, with minute triangular apical appendages; style branches linear, acute, terete, papillose.

Achenes fusiform, ribbed, tapering into a filiform beak ending in a small disk; pappus uniseriate, of free plumose bristles.

Distribution:  About 50 species in temperate Europe, Asia and Africa; 2 are naturalised in Australia.

Biology: No text

Author: Not yet available

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