Stellaria angustifolia subsp. rotundisepala C.H.Mill. & J.G.West

J. Adelaide Bot. Gard. 25: 37 (2012) APNI

Taxonomic status:Accepted

Occurrence status:Extinct

Establishment means:Native

Threat status:Victoria: extinct (x)

Glabrous annual herb; stems erect, to 25 cm long, usually single stemmed. Leaves (3.5–)6–9.5(–13) mm long. Pedicles slender, (22–)27–40 mm long, erect in fruit. Sepals round to broadly elliptic, 1.5–2.1 mm long, obtuse, apex folded over to form a hood, sometimes the hood thickened; petals 2.4–3 mm long, bifid; stamens 10, filaments to 3 mm long. Seeds 2–5(–7), suborbicular; tubercules rounded, giving seeds a spiny appearance.    

SA, NSW, Tas. This subspecies is known from alpine bogs. Recorded once in Victoria near the Timbarra River, east of Omeo, in 1959. Further searches are required in Victoria to establish if this subspecies still occurs in Victoria.

Subsp. rotundisepala has been named to reflect the unique shape of the sepals which is not found in any other species in Australia (Miller & West 2012).

Created by: Andre Messina, 2015-05-26
Updated by: Val Stajsic, 2018-01-22
 
References

Miller, C.H. & West, J.G. (2012). A revision of the genus Stellaria (Caryophyllaceae) in Australia, Journal of the Adelaide Botanic Gardens 25: 27-54.