Common name: black she-oak
Allocasuarina littoralis (Salisb.) L.A.S.Johnson APNI*
Synonyms: Casuarina littoralis Salisb. APNI*
Casuarina suberosa Otto & A.Dietr. APNI*
Description: Tree 5–15 m high, usually dioecious.
Branchlets to 20 (rarely to 35) cm long; articles 4–10 mm long, 0.4–1.0 mm diam.; ridges angular or rounded-convex; teeth 6–8 (rarely 5 or 9), erect or rarely spreading, not overlapping, usually withering, 0.3–0.9 mm long.
Cones very rarely with diam. greater than length, on peduncle 4–23 mm long; cone body 10–30 (rarely to 45) mm long, 8–21 mm diam.; bracteoles broad-acute to obtuse, protuberance occasionally with 2 lateral bodies. Samara 4.0–10.0 mm long, dark brown to black.
Distribution and occurrence: In coastal and adjoining tableland regions. Also in Qld, Vic and Tas.
In woodland or occasionally tall heath, on sandy or otherwise poor soils (cf. A. torulosa).
NSW subdivisions: NC, CC, SC, NT, CT, ST, NWS, CWS, NWP
Other Australian states: Qld Vic. Tas.
Variable in size of articles and cones; this may be correlated with ploidy level (diploid or tetraploid); needs further study over the range of the species. Hybrids between this species and A.distyla are relatively common between Broken Bay and Port Hacking.
Text by K. L. Wilson & L. A. S. Johnson (1990); edited KL Wilson (Feb 2014, Feb 2017)
Taxon concept: Flora of NSW 1 (1990)
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.