Contains 6 accepted taxa overall.
Characteristics
Classification
Citation
DROSERA Linnaeus, Sp. Pl. 281. 1753.
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TYPE: Drosera rotundifolia Linnaeus Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 2: 203. 1913.
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Drosera brevifolia | DWARF SUNDEW | Native OBL (NWPL) FACW (DEP) | ||
| Drosera capillaris | PINK SUNDEW | Native OBL (NWPL) FACW (DEP) | ||
| Drosera filiformis var. floridana | THREADLEAF SUNDEW | Native Rare-State OBL (NWPL) OBL (DEP) | ||
| Drosera intermedia | WATER SUNDEW; SPOONLEAF SUNDEW | Native Threatened-State OBL (NWPL) OBL (DEP) | ||
| Drosera tracyi | TRACY'S SUNDEW | Native OBL (NWPL) OBL (DEP) | ||
| Drosera x californica var. arenaria | Native |
Identification Key
1. Leaf blades filiform, not differentiated from petioles; stem base bulbose-cormose (from expanded petiole base); petals 7-17(20) mm
2
1. Leaf blades linear or suborbiculate to obovate, elongate-spatulate, or cuneate, differentiated from petioles or not; stem base not bulbose-cormose; petals 3-7(8) mm
3
2. Leaf blades 8-25(30) cm long, ca. 1 mm wide or less, glandular trichomes red to reddish purple, drying dark brown; scapes 6-26 cm long; petals 7-10(12) mm long
2. Leaf blades 30-50 cm long, 1-2 mm wide, glandular trichomes pale green, drying pale greenish brown; scapes 25-60 cm long; petals 12-17(-20) mm long
3. Petiole often glandular and scarcely distinct from the expanded blade; scapes stipitate-glandular; stipules absent or reduced to minute hairs; seeds black, crateriform
3. Petiole usually eglandular, rather distinct from the blade; scapes glabrous; stipules present, free from petioles; seeds reddish brown or brown, papillose
4
4. Plant always rosulate; leaves spreading to prostrate, usually <4(6) cm long; petioles flat, sparsely glandular-pilose; petals pink to white, 6-7 mm long; seeds coarsely papillose-corrugated, 0.4-0.5 mm long
4. Plant rosulate at first, usually developing leafy stems 1-8(20) cm long; leaves spreading to erect, to 8 cm long; petioles filiform, glabrous; petals white (rarely pink), 3-6 mm long; seeds uniformly papillose, 0.7-1 mm long
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| Dismophyla | Dismophyla Rafinesque, Fl. Tellur. 3: 36. 1837 ("1836"). | TYPE: Dismophyla binata (Labillardiere) Rafinesque (Drosera binata Labillardiere) | |
| Rorella | Rorella Hill, Brit. Herbal 187. 1756. | TYPE: = Drosera Linnaeus 1753. | |
| Rossolis | Rossolis Adanson, Fam. Pl. 2: 245, 599. 1763. | TYPE: = Drosera Linnaeus 1753. | |
| Sondera | Sondera Lehmann, Nov. Stirp. Pug. 8: 44. 1844. | TYPE: Non designatus. |