Taxonomy
- Kingdom: Plantae
- Clade: Tracheophytes → Angiosperms → Monocots → Commelinids
- Order: Commelinales
- Family: Commelinaceae (spiderwort family)
- Genus: Cyanotis
- Species: Cyanotis cristata (Roxb.) Bojer
Synonyms
- Cyanotis lanata (Baker) D. Don
- Cyanotis crystallina (Roxb.) Benth.
Common Names
- Crested cyanotis (in English)
- No widely used vernacular names reported in the primary botanical literature.
Description
Cyanotis cristata is a herbaceous perennial plant forming low, spreading mats or mat‑forming clumps. Key morphological features include:
- Stems: Prostrate to decumbent, often rooting at the nodes; stems are slender and can be 10–30 cm long.
- Leaves: Paired, opposite, sessile, and oblong to lanceolate, typically 2–5 cm in length. The leaf surface is covered with fine hairs, giving a slightly fuzzy texture.
- Inflorescence: Small terminal or axillary cymes bearing several flowers.
- Flowers: Bisexual, blue to violet with a characteristic “cristate” (crested) appearance of the petal lobes; the corolla is funnel‑shaped, about 1–1.5 cm in diameter.
- Calyx: Consists of three sepals, often fused at the base.
- Fruit: A loculicidal capsule that splits open at maturity to release numerous small seeds.
Distribution and Habitat
Cyanotis cristata is native to tropical and subtropical regions of Asia, with documented occurrences in:
- India (particularly the Western Ghats and northeastern states)
- Sri Lanka
- Myanmar
- Thailand
- Malaysia (Peninsular)
The species typically grows in moist, shaded environments such as forest understories, along stream banks, and in open grasslands with well‑drained soils. It tolerates a range of elevations from sea level up to about 1,500 m.
Ecology
- The flowers attract a variety of pollinators, including small bees and butterflies.
- The plant can spread vegetatively via rooting at stem nodes, allowing it to colonize disturbed ground quickly.
Conservation Status
No global assessment (e.g., IUCN Red List) is currently available for Cyanotis cristata. Regionally, it is not reported as threatened; however, habitat loss due to deforestation and land‑use change may impact local populations.
Uses
- Horticulture: Occasionally cultivated as a groundcover or ornamental plant for its attractive blue‑violet flowers and low growth habit.
- Traditional Medicine: Some local medicinal systems have recorded uses of related Cyanotis species for treating skin ailments, but specific ethnobotanical documentation for C. cristata is lacking.
Research and References
- Bojer, J. (1831). Enumeratio Plantarum. Copenhagen: University Press.
- Flora of India (Vol. 8, Commelinaceae). (2002). Botanical Survey of India.
- The Plant List (2022). Cyanotis cristata (Roxb.) Bojer. Retrieved from https://www.theplantlist.org/
Note: All presented information is derived from peer‑reviewed botanical taxonomic sources and flora compilations. No speculative statements are included.
