Family: Stylidiaceae
Stylidium perpusillum
Citation:
Hook. f., London J. Bot. 6:266 (1847).
Synonymy: Not Applicable Common name: Slender (or tiny) trigger-plant.
Description:
Delicate annual with an erect thread-like stem up to 4 cm tall, with a rosette of usually 4 leaves at the base, usually glabrous except for the inflorescence; leaves sessile, restricted to a rosette at the base of the plant, linear-lanceolate, 1-6 x 1-2 mm, obtuse or acute, entire, fleshy.
Inflorescence a dichasium with 1 rarely 2 or 3 flowers on pedicels usually longer than the flowers and sparsely glandular-pubescent; peduncle 1-3 cm long, sparsely glandular-pubescent; bracts linear-lanceolate, 1-4 mm long; sepals scarcely connate, 2.5-4 mm long, unequal, sparsely glandular-pubescent; corolla with the tube shorter than the sepals, without appendages in the throat, white; lobes oblong-oblanceolate with a rounded apex, vertically paired into a shorter upper and a longer lower lip and with short rounded lobes at the base between the 2 lips, glabrous; labellum lanceolate-acuminate, without lobes; column short, with pale anthers; stigma tufted, protruding; ovary with several ovules on a shortly stalked, spherical central placenta.
Capsule globular, 2-4 mm diam.; no mature seeds available.
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Image source: fig. 640f in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).
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Published illustration:
Erickson (1958) Triggerplants, pl. 8, figs 11-17.
Distribution:
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Moist areas or swamps in heath or paperbark vegetation.
S.Aust.: NL, SL, KI, SE. W.Aust.; Vic.
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Conservation status:
native
Flowering time: Sept., Oct., rarely Nov.
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SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
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Biology:
No text
Author:
Not yet available
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