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Linaria arvensis (L.) Desf.
Family Plantaginaceae
Linaria arvensis (L.) Desf. APNI*

Description: Erect glaucous annual herb, 10–40 cm high, simple or much-branched, glabrous except for glandular-hairy inflorescence.

Leaves whorled below, alternate up stem, linear to narrow-elliptic, 0.4–3.5 cm long, 1–2 mm wide.

Inflorescence many-flowered, at first dense, elongating in fruit; bracts 1–3 mm long; flowers ± sessile, pedicels 1–2 mm in fruit. Sepals 2 mm long, c. 3 mm in fruit. Corolla 3–4 mm long, pale blue to purple, palate at least sometimes white; spur 1.5–3 mm long, curved; upper lip pointed outwards, lower lip longest, recurved.

Capsule ± globose, 3–4 mm long, glabrous, breaking in apical half into 4–6 valves.


Herbarium
Sheet

Flowering: chiefly spring.

Distribution and occurrence: Grows chiefly in disturbed sites along roadsides and railway lines, or in pasture, and in forest and woodland; widespread.
NSW subdivisions: *NT, *CT, *ST, *NWS, *CWS, *NWP, *SWP
Other Australian states: *Vic.
AVH map***

Text by W. R. Barker
Taxon concept: Flora of NSW 3 (1992)


APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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