Family: Asteraceae
Ixodia
Citation:
R. Br., in W.T. Aiton, Hort. Kew edn 2, 4:517 (1812).
Synonymy: Not Applicable Common name: Ixodias, fireweeds.
Description:
Shrubs or undershrubs, glandular, aromatic, viscid; stems woody, branched, leafy; leaves cauline, alternate, entire, flat.
Capitula sessile or shortly pedunculate in terminal corymbs, homogamous, discoid; involucres campanulate to ovoid, 4-6-seriate; outer bracts appressed, unequal, narrowly oblong to elliptic, cartilaginous; inner bracts spathulate with conspicuous petaloid papery laminae on linear cartilaginous claws; receptacle conical, with a large scale subtending each floret; florets bisexual, fertile, tubular, 5-merous; corolla cylindrical, shortly 5-toothed, sparsely glandular; anthers tailed at the base with narrowly lanceolate terminal appendages; style branches terete, truncate.
Achenes more or less flattened, 3- or 4-angled, glabrous to pubescent; pappus absent, sometimes replaced by a pappus-like ring of papillae.
Distribution:
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2 species in southern Australia. (P. B. Copley (1982) J. Adelaide Bot. Gard. 6:41-54.)
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Biology:
No text
Key to Species:
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1. Laminae of inner involucral bracts glabrous; achenes papillose-pubescent, without a pappus-like ring |
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I. achillaeoides 1. |
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1. Laminae of inner involucral bracts densely scaly on the inside; achenes glabrous, with a ring of papillae near the apex |
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I. flindersica 2. |
Author:
Not yet available
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