All Floras      Search Specimen
Login | eFloras Home | Help
IBSC | Family List | Cruciferae

Taphrospermum C. A. Mey.

沟子荠属

Description from Flora of China

Glaribraya H. Hara.

Herbs biennial or perennial. Trichomes simple, rarely absent. Roots often fleshy, narrowly fusiform, basally with a whorl of caducous or persistent scalelike leaves. Stems prostrate, ascending, or erect. Basal leaves petiolate, not rosulate, simple, entire. Cauline leaves petiolate, entire, lowermost whorled or alternate. Racemes many flowered, bracteate throughout or rarely only basally. Fruiting pedicels ascending or divaricate, straight or recurved. Sepals oblong, erect, glabrous or subapically pubescent, base of lateral pair not saccate. Petals white, longer than sepals; blade obovate or broadly so, apex rounded or emarginate; claw obscure. Stamens 6, subtetradynamous; filaments of median pairs dilated at base; anthers ovate, apex rounded. Nectar glands confluent, subtending bases of all stamens. Ovules to 12 per ovary. Fruit dehiscent siliques or silicles, cylindric, narrowly conical, or obcordate, ovate, or oblong, angustiseptate, terete, or latiseptate, sessile or subsessile; valves distinctly veined, glabrous or papillate, torulose or smooth; replum widely flattened throughout or only basally; septum complete, rarely absent or perforate and reduced to a rim; style to 3 mm; stigma capitate, entire. Seeds uniseriate or biseriate, wingless, oblong, plump or flattened; seed coat foveolate or papillate, not mucilaginous when wetted; cotyledons incumbent, oblique, or accumbent.

Taphrospermum platypetalum Schrenk, which is endemic to Soongaria in Kazakhstan, might also be present in neighboring Xinjiang. It has racemes bracteate only basally, glabrous sepals, and cylindric fruit.

Seven species: Bhutan, China, India, Kazakhstan, Kyrgyzstan, Mongolia, Nepal, Russia, Tajikistan; six species (three endemic) in China.


 

Related Objects  

Flora of China  
  • Al-Shehbaz, Ihsan A. 2000. A revision of the Himalayan and Central Asian Genus Taphrospermum (Brassi
  • Web Page
  • PDF File
  • PDF

    IBSC @ efloras.org
    Browse by
    Family
    Genera
    Search by name

    Specimen Search

    People @ IBSC

     

     

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