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Electronic Flora of South Australia species Fact Sheet

Family: Caryophyllaceae
Cerastium semidecandrum

Citation: L., Sp. Pl. 438 (1753).

Synonymy: Not Applicable

Common name: None

Description:
Small mouse-ear chickweed. Erect or decumbent annual, to c. 20 cm high; stems usually branched from the base; viscid-glandular; leaves c. 18 x 2-4 mm, usually hairy above, the basal oblanceolate, the upper ovate to broadly elliptic.

Pedicels more or less equalling or longer than the sepals; cymes loose; sepals 3-5 mm long, 1-1.5 mm wide, ovate, acute or subacute, with wide scarious margins; petals c. 3 mm long, c. 1.5 mm wide, shallowly bilobed; stamens 5; styles 5.

Capsule 4-7 mm long, 1.5-2.5 mm wide; seeds 0.4-0.5 mm, yellowish-brown, tuberculate.

Distribution:    N.S.W.; Vic.   Native to Europe and the Middle East.

Conservation status: naturalised

Flowering time: Aug. — Jan.


SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia

Biology: No text

Taxonomic notes: As mentioned by Willis (1972), A handbook to plants in Victoria 2:138, and H. Eichler (1965), Suppl. 140, this species may have been confused with C. diffusum and C. balearicum F. Herm. and further work is needed to sort out the identity of S. Aust. specimens.

Author: Not yet available


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