Meconopsis dhwojii — Papaveraceae

Meconopsis dhwojii

by G & P Jürgens

G.Taylor

Nepal 2009 48 ergebnis
Nepal Helambu Hile-Bhangyang 3380, May

Description

Meconopsis dhwojii is a narrow Central Himalayan endemic, restricted to the high mountains of Nepal, where GBIF records cluster; the remaining occurrences in Great Britain and Canada represent cultivated and herbarium material. The 46 georeferenced records reflect its rarity and confined range. It inhabits the upper subalpine and alpine zone between roughly 3000 and 4300 m, growing on open rocky slopes, screes, moist cliff ledges and disturbed grazed turf. The plant photographed at Hile-Bhangyang in Helambu at about 3380 m in May typifies this monsoon-influenced montane habitat, where flowering coincides with snowmelt and the early growing season.

This is a monocarpic herb forming a dense basal rosette of pinnatifid to pinnatisect leaves, the whole plant conspicuously clothed in spreading, pale yellowish-brown to purple-based bristly hairs arising from dark spotted bases. From the rosette a stout, leafy, bristly flowering stem ascends, bearing the flowers in a leafy raceme. The nodding to half-spreading flowers have four broad, pale yellow petals; the numerous stamens surround a single style topped by a clavate stigma. The fruit is a narrowly oblong, bristly capsule dehiscing by short apical valves and releasing many small seeds.

Named for Dhwoj, a Nepali plant collector of the early-twentieth-century explorations, M. dhwojii belongs to the bristly, monocarpic poppyworts and is allied to M. paniculata and M. napaulensis within section Aculeatae. Like its relatives it dies after a single flowering, relying entirely on copious seed for persistence, an adaptation to unstable scree and disturbed alpine ground. Though not formally assessed as threatened, its restricted Nepalese distribution and collection for horticulture make habitat integrity important to its survival.

Author: G.Taylor · Sources: POWO (Kew), GBIF, Flora of Nepal, Annotated Checklist of the Flowering Plants of Nepal, Grey-Wilson Meconopsis monograph

Within the same family