Drosera glabriscapa is an annual sundew of northern Western Australia whose name draws attention to its smooth flowering stalk. The species combines a relatively small upright plant with intensely coloured flowers, making the contrast between vegetative and floral characters especially useful.
Accepted identity and publication history
Kew accepts D. glabriscapa Lowrie as an annual native to northern Western Australia. IPNI records its publication in the appendix of Lowrie’s Magnum Opus, explaining the date as December 2013, published in 2014. This accounts for the different years a reader may encounter in bibliographic records. Kew record, IPNI publication record
A publication date is different from the date of the type collection. Keep those events separate when describing the history of a species.
A recent field account
Ng’s 2026 profile documents plants north of Kalumburu in shallow seepage habitat where moisture moves onto sandstone. He describes narrow leaves with short petioles, small glandular hairs on the main stem, a hairless scape and cerise flowers with darker centres. The species grows and flowers during the wet season and dies as its habitat dries. Field profile
His comparison with D. fragrans uses the smaller habit and absence of that species’ fleshy red structures on the leaf backs. Flower colour alone therefore does not resolve the identification. Comparison with D. fragrans
What “hairless” describes
In this name, the emphasis is the scape. It should not be extended to every surface of the plant. Photograph the main stem and the flower stalk separately, then record which structures carry glands or hairs.
This is a recurring theme in Arachnopus: small differences in the covering of particular organs can be more diagnostic than the overall spider-like arrangement of the leaves.
Cultivation: recommendations and conflicting labels
Carlton Carnivores suggests warm conditions, strong light, moist sandy peat and surface sowing. However, its page labels the species perennial, conflicting with both Kew and Ng’s field account. The annual interpretation is followed here, and the horticultural page is used only as a source of proposed growing guidance. Horticultural account
No long-term cultivation trial is established by that recommendation. Record the actual response of a documented accession rather than assuming that a stated recipe settles its requirements.
Maintaining a seed line
For an annual, continuity depends on the next generation. Follow flowering and capsule development, record the parent plants and keep seed batches separate. Where pollination was uncontrolled among related plants, preserve that uncertainty.
The useful photographic sequence is a mature leaf, the stem, a full flowering stalk and an open bloom. It connects the name’s most conspicuous character with the other details needed to distinguish this sundew from similar species.
Nano Nursery Drosera Encyclopedia — species profile. Related core chapters: 11 and 29. Reviewed 23 September 2026. Cultivation guidance concerns established plants where evidence is available.
