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Electronic Flora of South Australia species Fact Sheet

Family: Euphorbiaceae
Beyeria subtecta

Citation: J. Black, Fl.S. Aust. 357 (1924).

Synonymy: Not Applicable

Common name: Kangaroo Island turpentine bush.

Description:
Sticky dioecious bushes with slender terete ascending branchlets to 60 cm high, if with lines of white tomentum these usually obscured by a sticky covering all around; leaves linear, 3-10, usually 5-8mm long, 0.8-1.2 rarely to 1.6mm wide, shortly mucronate, cuneate into distinct 0.5-1 mm long petioles, margins entire, recurved, upper surface dark-green, glabrous, lower with a narrow band of white appressed tomentum on either side of the glabrous midrib.

Flowers solitary, axillary and/ or terminal on short shoots; male flowers on slender peduncles 1.2-4 commonly 1.5-3 mm long, white-pubescence; calyx lobes 5, rarely 4, imbricate in bud, rotate, ovate, unequal, 1-1.8 mm long, yellow or white to light-green, reddened in parts, pubescent at the base; disc narrow, with 13-28 crowded stamens; anthers usually longer than broad, with parallel cells on undivided connective; female flowers subsessile on peduncles to 0.6 mm long, white-pubescent; calyx lobes 5, ovate, 1-2 mm long, erect, more or less imbricate, enclosing the ovary apart form the stigmas; carpels 2, ovules 1 in each cell; stigmas 2 broad recurved flaps forming a 2-lobed cap appressed to the ovary.

fruit borne in persistent perianth-segments on an angular attenuate peduncle 0.2-1.3 mm long and 0.8-1 mm broad at the apex; capsule obliquely broad-ovoid, 3-3.5 x 2.1-2.8 mm, glabrous, dark-green with a persistent black stigmatic cup c. 0.5 mm high and 0.8-1 mm wide, with only 1 carpel developing seed; seed oblong, 2.7-3.5 x 2-2.5 mm, shiny, grey, dark-brown or black- and grey-mottled, topped by a sessile hemispherical brown-yellow fleshy caruncle less than half the diameter of the seed.

image of FSA2_Calycopeplus_pau.jpg Beyeria subtecta with opened male flower, twig of male plant, male flower, twig of female plant, female flower, fruit and seed.
Image source: fig 398c in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).
image of FSA2_Beyeria_sub.jpg Beyeria subtecta with opened male flower.
Image source: fig 398c in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).

Published illustration: Barker & Dashorst (1984) J. Adelaide Bot. Gard. 7:139.

Distribution:  S.Aust.: KI.

Conservation status: native

Flowering time: Sept. — Feb.


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

Biology: No text

Taxonomic notes: The male plants sometimes can not be distinguished from its closest relative B. lechenaultii, with which it can occur sympatrically.

Author: Not yet available


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