Orthrosanthus

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Tufted, rhizomatous, evergreen perennial herb. Leaves mostly basal, equitant, linear, erect. Inflorescence with scape erect, terete, often with 1–3 reduced leaves; flowering part of inflorescence branched with flowers in clusters, each cluster basally enclosed by 2 herbaceous primary bracts. Flowers actinomorphic, soon withering, almost sessile. Perianth shortly united to form a 'tube' less than 2 mm long, distally spreading, lobes equal or subequal, with distinct midveins, blue; stamens exserted, erect, filaments united at the base or free, anthers dorsifixed, yellow; style deeply 3-branched, branches entire, terete, minutely channelled, projecting horizontally between the stamens, stigmas terminal, minute; ovary trigonous-ellipsoid, enclosed by a bract. Capsule ovoid-trigonous, on a short pedicel; seeds many, surface rugose, brown.

About 7 species in America and Australia; 4 species endemic in Australia, 1 occurring in Victoria.

Source: Conn, B.J. (1994). Iridaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons. Inkata Press, Melbourne.
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life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Asparagales
family Iridaceae
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