Barclaya hirta is a species of aquatic plant endemic to Sumatra, Indonesia.
Description Vegetative characteristics Barclaya hirta is an aquatic plant with villous, stoloniferous, slim, 2–5 cm long, and 0.5–1 cm wide rhizomes. The 10-15 petiolate, rounded to ovate leaves with an obtuse apex are 5–10 cm long, and 4–8 cm wide. The petioles are 5–20 cm long. The leaves exhibit brownish pubescence.Miquel, F. A. W. (1871). Illustrations de la flore de l’archipel Indien. p. 44. Retrieved from https://books.google.com/books?id=6kAAAAAAQAAJ Generative characteristics The nocturnal, 4 cm wide flower is attached to a 5–20 cm long peduncle. The outer tepals are 2.5–3 cm long, and the 6-8 inner tepals are 2 cm long. The androecium consists of 30-40 stamens. The stigmatic cup has 7-9 carpellary appendages. Fruits were not observed. Cytology The diploid chromosome count is 2n = 36.
Reproduction Vegetative reproduction It can reproduce vegetatively through the formation of stolons.
Generative reproduction The flowers are likely nocturnal.
Taxonomy It was first described as Nymphaea hirta Kurz ex Teijsm. & Binn. by Wilhelm Sulpiz Kurz but validly published by Johannes Elias Teijsmann and Simon Binnendijk in 1864. Later, it was transferred to the genus Barclaya Wall. as Barclaya hirta (Kurz ex Teijsm. & Binn.) Miq. by Friedrich Anton Wilhelm Miquel in 1870.Barclaya hirta | International Plant Names Index. (n.d.). Retrieved January 13, 2024, from https://www.ipni.org/n/605257-1Nymphaea hirta | International Plant Names Index. (n.d.). Retrieved January 13, 2024, from https://www.ipni.org/n/605578-1 The type specimen was collected by Johannes Elias Teijsmann in Sumatra, Indonesia.Jacobsen, N., Ganapathy, H., Ipor, I., Jensen, K. R., Komala, T., Mangsor, K. N., ... & Ørgaard, M. (2022). "A reassessment of the genus Barclaya (Nymphaeaceae) including three new species." Nordic Journal of Botany, 2022(5), e03392. Etymology The specific epithet hirta, from the Latin hirtus, means hairy.Euphorbia hirta | CasaBio. (n.d.). Retrieved January 13, 2024, from https://casabio.org/taxa/euphorbia-hirta
Conservation It is classified as data deficient (DD) under the IUCN criteria.
Ecology Habitat It occurs in small streams.
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