Family: Boraginaceae
Plagiobothrys orthostatus
Citation:
J. Black, Trans. R. Soc. S. Aust. 52:226 (1928).
Synonymy: Not Applicable Common name: None
Description:
Delicate annual with few erect branches to 7 cm long, with flowers along the branches without a tap root, almost glabrous except for dense appressed hairs on the inflorescences; leaves densely clustered, opposite, narrowly triangular and with a broad ciliate sheath fused at the base in a basal rosette, becoming scattered, alternate, linear, and without a sheath on the inflorescence, 0.5-2.5 x 0.1-0.2 cm, usually tapering into a point, almost glabrous and mainly with a few marginal cilia at the base to somewhat hairy on the inflorescence.
Inflorescence terminal, with each branch being a scorpioid cyme, with widely spaced flowers with pedicels to 2 mm long when fruiting, with bracts longer than the calyx at least on the lower flowers; sepals slightly connate basally, 1-1.5 mm long or to 2.5 mm long and equally long when fruiting, with lobes linear, bluntly acute, covered with forward-directed hairs, scarcely hardening at the base; corolla narrowly tubular, white, glabrous, c. 1.5 mm long, slightly longer than the calyx, with pouches or scales in the throat, oblong to almost square, c. 0.3 mm long, rounded; stamens inserted at about the middle of the corolla tube, with anthers almost sessile, narrowly ovoid, 0.2-0.3 mm long, crested: ovary 4-lobed, with a style inserted near the base, c. 0.2 mm long, with a terminal capitate stigma.
Mericarps 4, ovoid, with a vertical keel continuing from the attachment scar on the ventral side to the apex, ridged dorsally but with a shallowly rugose-reticulate surface, smooth to granulate, rarely tuberculate.
| Habit and mericarp in three views.
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Image source: fig. 542B in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).
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Distribution:
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S.Aust.: SE.
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Conservation status:
native
Flowering time: May — Nov.
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SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
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Biology:
No text
Author:
Not yet available
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