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Electronic Flora of South Australia species Fact Sheet

Family: Lamiaceae
Dicrastylis exsuccosa

Citation: Druce, Rep. Botl Soc. Exch. Club Br. Isl. 4:619 ( 1917).

Synonymy: Pityrodia exsuccosa F. Muell., Fragm. Phyt. Aust. 1:60 (1858). , Dicrastylis exsuccosa, Dicrastylis ochrotricha

Common name: None

Description:
An erect shrub, 30-90 rarely to 120 cm high, densely clothed with a branched tomentum; leaves opposite, petiolate, lanceolate to ovate-lanceolate, obtuse, cuneate or rounded towards the base, thick, soft and densely woolly-tomentose on both sides, more or less scabrous and rugose above when old, 3-8 rarely to 10 cm long, 0.7-2.5 cm broad, entire; petiole 5-8 mm long.

Inflorescence with a golden-yellow or a greyish-orange tomentum; cymes pedunculate, arranged in a more or less pyramidal panicle, sometimes with a few short umbel-like branches; flowers pedicellate; bracts sessile, lanceolate, c. 1 mm long, tomentose outside, glabrous inside; calyx 5-lobed, densely tomentose outside, glabrous inside, 3-4 mm long; lobes oblong-lanceolate, obtuse, free to just below the middle, 2-3 mm long; tube short, 1-1.5 mm long; corolla tubular, 5-lobed towards the apex, 4.5-5 mm long, tomentose outside, villous-tomentose inside the throat; lobes more or less oblong, obtuse, 1-1.5 mm long, glandular and tomentose outside, glabrous inside; tube more or less cylindrical, 3.5-4 mm long; stamens 5, almost included or scarcely exserted; filaments short, glabrous, 1-1.7 mm long; anthers more or less oblong, pale-yellow, lobes free, divergent and narrowed in the lower half; ovary subglobose, densely tomentose, 1.5-2 mm diam.; style deeply 2-branched, included to scarcely exserted, 2-2.5 mm long (including the lobes), the lower undivided part densely tomentose; lobes unequal, glabrous, 1-1.3 mm long.

Fruit obovoid, short-tomentose, 3-3.5 mm diam.

Distribution:  S.Aust.: NW.

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

Uses: J.B. Cleland (1957), Mankind 5, 4:149-162, notes that Aborigines used the velvety fluff on the stems of D. exsuccosa as a ceremonial body decoration.

Taxonomic notes: Before Munir (1978) published a complete revision of the genus, D. exsuccosa (F. Muell.)Druce, D. gilesii F. Muell., D. brunnea Munir, D. petermannensis Munir and their infraspecific taxa were often confused.

Author: Not yet available


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