Clematis hedysarifolia

Clematis hedysarifolia is a liana, endemic to peninsular India, belonging to the buttercup family (Ranunculaceae). It was described by Augustin Pyramus de Candolle and published in Regni Vegetabilis Systema Naturale 1: 148, in 1817.[1]

Clematis hedysarifolia
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Ranunculales
Family: Ranunculaceae
Genus: Clematis
Species:
C. hedysarifolia
Binomial name
Clematis hedysarifolia

Description

It is a woody evergreen climber, with the following features:[2][3][4]

  • Branches - ribbed, roundish, thinly sprinkled with very fine soft hairs when young.
  • Leaves - pinnate or bipinnate, opposite, in pairs alternately perpendicular, with wide intervals between the pairs, with 3 leaflets.
    • Petiole : purplish, slightly hairy, up to 9 cm long, sometimes twining.
    • Leaflets : leathery, green, glabrous, stalked, entire, ovate lanceolate, with acuminate apex, base rounded or cordate, strongly reticulate, .
  • Inflorescence - Flower panicles are arise in leaf axils and at the end of branches, pendulous, many-flowered, branchlets stiff, decussately opposite and wide apart. Flower stalks are slender, hairy, bearing two small opposite abortive buds below their middle. Flowers are white, furred on the outside, about 1.6 cm across.
    • Flowers - yellowish-green to white, furred on the outside, about 1.6 cm across.
    • Sepals - 4, ovate, ovate-oblong, externally tomentose
    • Petals - 4, ovally oblong, equal, blunt, cruciately rotate.
    • Stamens - cream-coloured, upright, about 1/4 shorter than the petals, many, smooth.
    • Anthers - Compressed, threadlike filaments. Anthers of same color, linearly oblong, upright with a short obtuse point and a flattish receptacle.
    • Pistils - longer than the stamens, greenish.
  • Fruit/Seeds - Achenes compressed, broadly elliptic or ovate, hairy, 5mm × 3mm.

Easily distinguished from the common Clematis gouriana, by the larger flowers and aristate (pointed) anthers.[2]

  • Flower
    Flower
  • Flower pannicle
    Flower pannicle
  • Tendrils, leaf stalk with buds
    Tendrils, leaf stalk with buds

Distribution

The species is endemic to India, and found in forests of Gujarat, Maharashtra, Goa, and Karnataka states.[5] The creeper occurs in moist deciduous forests between the altitudes of 500–1500 m.[4][5] Flowering is October–November, and fruiting is in December.[2]

References
  1. "Clematis hedysarifolia DC". The Plant List. Retrieved 16 March 2018.
  2. W A Talbot (1902). The Trees, Shrubs and Wood-Climbers of the Bombay Presidency (2 ed.). Bombay: Government Central Press.
  3. "Burman Clematis". Flowers of India. Retrieved 17 March 2018.
  4. Sardesai, Milind; Govekar, Ravikiran; Yadav, SR (2013). Field Guide to the Plants of Sahyadri and Konkan. Pune: Forest Department, Government of Maharashtra. p. 138.
  5. Wang Wen-Tsai (2006). "A revision of Clematis sect. Naraveliopsis (Ranunculaceae)" (PDF). Acta Phytotaxonomica Sinica. Botanical Society of China and the Institute of Botany, Chinese Academy of Sciences. 44 (6): 670–699. doi:10.1360/aps050090. Retrieved 16 March 2018.
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