Caladenia reticulata

W.Fitzg. Veined Spider-orchid
Gard. Chron. 17: 462 (1882)
Taxonomic status Accepted
Occurrence status Present
Origin Native
Degree of establishment Native
Threat status
FFG: Endangered (EN)

Flowering plant 10–30 cm tall. Leaf 7–12 cm long, 3–7 mm wide. Flowers solitary (rarely 2); perianth segments 2.5–4 cm long, yellowish-green and crimson to wholly crimson; lateral sepals divergent, spreading, flattened at base, 4–5 mm wide, tapered to a filiform, clubbed tail, club 5–8 mm long, with dark-coloured, contiguous, sessile glands; petals drooping, shorter than sepals, flattened at base, tapered to long acuminate apex. Labellum curved forward with apex recurved and lateral lobes erect, lamina ovate, obscurely 3-lobed, 8–11 mm long and 6–8 mm wide (when flattened), yellowish with red margins and veins; marginal calli on lateral lobes linear or swollen apically, to 1.3 mm long, diminishing in size towards mid-lobe where margins broadly toothed; lamina calli in 4 or 6 crowded rows, barely extending beyond bend, linear to foot-shaped, c. 1.3 mm long at base of lamina, decreasing in size towards apex. Flowers Sep.–Oct.

LoM, Wim, GleP, VVP, GipP, OtP, WaP, Gold, CVU, GGr, EGL, EGU, WPro, HSF, HNF, OtR. Also SA. In Victoria, known only from scattered localities in the Stawell, Ararat, Horsham and Dunolly areas. Usually in open Eucalyptus leucoxylon woodland on poorly structured clay loams.

Caladenia reticulata has been more widely circumscribed in the past and included plants now described as segregate species (see for example C. ancylosa, C. australis, C. calcicola, C. insularisC. lowanensis, C. montana, C. robinsoniiC. valida, C. xanthochilaetc).

Caladenia reticulata in the strict sense may be confined to South Australia.

Source:

Entwisle, T.J. (1994). Orchidaceae. In: Walsh, N.G.; Entwisle, T.J., ‍Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons‍, pp. 740–901. Inkata Press, Melbourne.

Updated by: Jeff Jeanes, 16 May 2019
Caladenia reticulata (hero image) Spinning
Caladenia reticulata (distribution map) Spinning