All Floras      Advanced Search
FOC Vol. 6 Page 434 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 6 | Ranunculaceae

36. Oxygraphis Bunge, Verz. Altai Pfl. 46. 1836.

鸦跖花属 ya zhi hua shu

Wang Wencai; Michio Tamura, Michael G. Gilbert

Oxygraphis glacialis

Credit: Harvard University Herbaria

Herbs perennial, stemless, with short rhizomes. Leaves all basal, simple, petiolate, leaf blade undivided, indistinctly 3-lobed, or rarely 3-partite, margin crenate or entire, 3--5-veined. Inflorescence a solitary, scapose, terminal flower, rarely a 2- or 3-flowered monochasium. Flowers bisexual, actinomorphic. Sepals 5--8, enlarged after flowering, green, persistent or rarely deciduous. Petals 5--19, yellow, oblong, shortly clawed, with a small nectary pit above base. Stamens numerous; filaments narrowly linear; anthers ellipsoid or oblong. Carpels numerous, spirally arranged on a convex receptacle; ovule 1 per carpel, erect. Style shorter than ovary; stigmatic surface adaxial. Aggregate fruit broadly ovoid; achenes ± bilaterally compressed, narrowly rhombic or subfusiform, longitudinally 1- or more veined on each side, with a persistent style at apex.

Four species: Bhutan, China, India, Kashmir, Kazakhstan, Mongolia, Nepal, Pakistan, Russia; four species (two endemic) in China.

Oxygraphis is often included within Ranunculus .

1 Scapes puberulent apically; sepals papery, deciduous   1 O. delavayi
+ Scapes glabrous; sepals leathery or subleathery, persistent.   (2)
2 (1) Leaf blade orbicular, reniform, or ovate, base subcordate or truncate, margin crenate   2 O. endlicheri
+ Leaf blade ovate, elliptic, or linear, base broadly cuneate or attenuate, margin entire or rarely crenate.   (3)
3 (2) Leaf blade ovate, broadly ovate, or elliptic, 0.5--3 × 0.5--3 cm, base broadly cuneate; flowers 1.5--3 cm in diam.; petals 12--19   3 O. glacialis
+ Leaf blade linear, linear-lanceolate, or lanceolate, 0.8--1.5 × 0.2--0.4 cm, base attenuate; flowers ca. 1 cm in diam.; petals 9--11   4 O. tenuifolia

Lower Taxa


Related Objects  
  • PDF File
  • PDF

    Flora of China @
    Browse by
    Advanced Search

    Flora of China Home




     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |