Electronic Flora of South Australia
Electronic Flora of South Australia
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Electronic Flora of South Australia genus Fact Sheet

Family: Droseraceae

Citation: L., Sp. Pl. 1:281 (1753).

Derivation: Greek droseros, dewy; alluding to the glistening of the glandular leaf laminae.

Synonymy: Not Applicable

Common name: Sundews.

Leaves in a hemispherical rosette, flat basal rosette or cauline on a stem 2-60 cm long, sometimes with cauline leaves and a basal rosette; cauline leaves either linear and entire or divided, or peltate and orbicular or crescentic; rosetted leaves spathulate, flabellate, reniform or orbicular.

Sepals lanceolate, ovate or elliptic, 1.5-8 mm long, glabrous or pubescent, entire or lobed; petals obovate or elliptic-spathulate, 2-14 mm long, white, pink or orange.

Distribution:  54 species recorded for Australia, 42 of these occur in south-western W.Aust.

Biology: No text

Key to Species:
1. Leaf lamina linear, simple or divided; styles 3, bipartite or with a few branches
2. Leaf lamina entire, narrow-linear; stipules absent; stems often lax
D. indica 4.
2. Leaf lamina once or twice divided, segments linear; stipules membraneous; stem very short
D. binata 2.
1. Leaf lamina spathulate, flabellate, orbicular or crescentic; styles 3 or 4, with 2 to many branches
3. Leaves forming a hemispherical rosette; stipules present; scapes 1-4
4. Leaf lamina spathulate; inflorescence many-flowered; flowers 5-merous
D. glanduligera 3.
4. Leaf lamina orbicular, peltate; inflorescence 1-flowered; flowers 4-merous
D. pygmaea 7.
3. Leaves all or mostly cauline or all in a flat rosette; stipules absent; scapes 1 to numerous
5. Leaves all in a rosette, leaf lamina spathulate; inflorescences 1-flowered
D. whittakeri 8.
5. Leaves cauline or cauline with a basal rosette, cauline leaves petiolate, crescentic or orbicular; inflorescences many-flowered
6. Leaf lamina deeply concave, orbicular; stem trailing or climbing
D. macrantha 5.
6. Leaf lamina crescentic; stem usually erect
7. Calyx glabrous; peduncles usually more than 3 cm long
D. auriculata 1.
7. Calyx pubescent; peduncles usually less than 4 cm long
D. peltata 6.

Author: Not yet available

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