About
Contact
Links
Electronic Flora of South Australia
Electronic Flora of South Australia
Census of SA Plants, Algae & Fungi
Identification tools
 

Electronic Flora of South Australia species Fact Sheet

Family: Rutaceae
Boronia nana

Citation: Hook., Hook. Ic. 3:t. 270 (1840).

Synonymy: B. nana Hook. var. hyssopifolia Melville, Kew Bull. 1954:463 (1954); B. polygalifolia Smith var. pubescens Benth., Fl. Aust. 1:321 (1863); B. nana Hook. var. pubescens (Benth.)J.H. Willis, Victorian Nat. 73:193 (1957).

Common name: Dwarf boronia.

Description:
Dwarf spreading shrub to 25 cm high; branchlets slender, with 2 bands of setose hairs between the nodes; leaves 1- or 3-foliolate; petioles 4-15 mm long; lamina lanceolate, 4-25 x 0.5-2 mm, acute, glabrous to hispid, margin thickened.

Flowers axillary, solitary; flower-stalks (i.e. peduncle plus the pedicel) 2-bracteate at about the middle; sepals lanceolate, 2-3 mm long, acute; petals 3-4 mm long, white or pale-pink; filaments compressed, pubescent, glandular towards the apex; anthers with short acute apicula; stigma globular.

Cocci 2.5-4 mm high, glabrous; seeds c. 2 mm long, longitudinally striate.

Published illustration: Cochrane et al. (1968) Flowers and plants of Victoria, fig. 38.

Distribution:    N.S.W.; Vic.; Tas.

Conservation status: native

Flowering time: mainly Oct. — Dec., sporadically in early spring.


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

Biology: No text

Taxonomic notes: In B. nana, 3 infraspecific taxa have been recognised, viz.: var. nana with leaves glabrous and 3-foliolate; var. hyssopifolia Melville, with leaves glabrous and 1-foliolate; var. pubescens (Benth.)J.H. Willis, with leaves (plus pedicels, calyces and petals) pubescent with short coarse hairs (to 0.6 mm long) and 3-foliolate. Thorough examination of all specimens available revealed single plants with 1-and 3-foliolate leaves and a full gradient of pubescence on 3-foliolate specimens! We believe therefore, that it is impractical to distinguish any of these varieties.

Author: Not yet available


Disclaimer Copyright Disclaimer Copyright Email Contact:
State Herbarium of South Australia
Government of South Australia Government of South Australia Government of South Australia Department for Environment and Water