All Floras      Advanced Search
FOC Vol. 2-3 Page 74, 75 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 2-3 | Ophioglossaceae | Botrychium

5. Botrychium virginianum (Linnaeus) Swartz, J. Bot. (Schrader). 1800(2): 111. 1801.

蕨萁 jue qi

Osmunda virginiana Linnaeus, Sp. Pl. 2: 1064. 1753; Botrypus virginianus (Linnaeus) Michaux; Japanobotrychum virginianum (Linnaeus) M. Nishida ex Tagawa.

Rhizomes erect, short, cylindrical, fleshy, having many fleshy roots and annually producing 1 frond 25-70 cm tall. Sterile lamina: stalk 15-35 cm, subglabrous; lamina subternate, tri- or quadripinnatifid, pale green, broadly pentagonal or subdeltoid, 5-28 × 7-30 cm, thinly herbaceous, soft, abaxially lanuginose on midrib, base subtruncate or slightly cordate, apex acute or obtuse; pinnae broadly ovate, with basal pinnules small and middle ones large, oblong or ovate-lanceolate; ultimate segments elliptic or oblong, margin deeply lobed or dentate, apex acuminate; veins pinnate, free. Sporophore arising at top of common stipe; stalk 10-30 cm; lamina ovate-deltoid, 10-20 cm, 3- or 4-pinnate; pinnae stalked; sporangia globose or elliptic, each on tip of very short, sometimes obscure axes. Spore surface coarse and distantly verrucose. 2n = 184.

Forests; 1600-3200 m. Anhui, Chongqing, Gansu, Guizhou, Henan, Hubei, Hunan, Shaanxi, Shanxi, Sichuan, Xizang, Yunnan, Zhejiang [temperate Asia: Himalaya, Japan, Korea, Russia; temperate regions within the N Hemisphere; Central and South America].


Related Objects  
  • Illustration
  • Illustration

    Flora of North America  
  • Illustration
  • Illustration
  • Distribution Map
  • Map
    Photos by The Biodiversity of the Hengduan Mountains Project  
  • Image/JPEG (David Boufford)
  • Image/JPEG
  • Image/JPEG (David Boufford)
  • Image/JPEG

    Flora of China @
    Browse by
    Advanced Search

    Flora of China Home




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