Electronic Flora of South Australia
Electronic Flora of South Australia
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Electronic Flora of South Australia species Fact Sheet

Family: Orchidaceae
Caladenia dilatata

Citation: R. Br., Prod. Fl. Nov. Holl. 325 (1810).

Synonymy: Arachnorchis dilatata, Caladenia necrophylla

Common name: King spider, green-comb, green (or fringed) spider-orchid.

Plant 10-50 cm high; leaf hairy, oblong to elliptical or lanceolate, up to 6 cm long and c. 2 cm broad.

Flowers 1-3, in various shades of green, white, yellow, maroon and red; perianth-segments 2-8 cm, all spreading except the dorsal sepal, yellowish-green with a red central stripe; sepals subequal; dorsal sepal erect, broad-based with filiform tips, lateral sepals similar but spreading; petals narrower and shorter, never clavate or glandular; labellum somewhat ovate, to 20 mm long, maroon, green and yellow or white, tremulous on a movable claw, 3-lobed, somewhat ovate, recurved near the middle, the lateral lobes more or less erect, their margins toothed or combed, mid-lobe recurved, not toothed; calli maroon, large; column much incurved, 10-15 mm long, widely winged in the upper part, 2 sessile yellow calli at the base.

Distribution:  S.Aust.: SE.

Conservation status: native

Flowering time: No flowering time is available

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

Biology: No text

Key to Infraspecific taxa:
1. Sepals 3-8 cm long, slender, falcate or drooping, clubbed; calli of labellum club-shaped, not crowded .
var. dilatata 8a.
1. Sepals 2-4 cm long, broad, rigid, not clubbed; calli of labellum pyriform, crowded
var. stricta 8b.

Author: Not yet available

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