foc
《中国植物志》英文修订版
Flora of China
  FOC Vol.8 (2001)              | Family List  Brassicaceae  PDF Euclidium  PDF   |  eFloras.org Link Font:+ Big | - Small
   32. Euclidium  R. Brown
鸟头荠属   niao tou ji shu
  

Hierochontis Medikus, nom. rej.; Soria Adanson, nom. rej.

  

Herbs annual. Trichomes unicellular, eglandular, simple and stalked forked, in different sizes, some subsetose. Stems erect or ascending, simple or branched. Basal leaves petiolate, not rosulate, simple, entire, dentate, or rarely pinnatifid, often withered by flowering. Cauline leaves similar to basal, entire or dentate, reduced in size upward. Racemes ebracteate, elongated in fruit. Fruiting pedicels stout, thickened, erect, appressed to rachis. Sepals oblong, erect, base of lateral pair not saccate. Petals white, slightly longer than sepals; blade narrowly spatulate, apex emarginate; claw slightly differentiated from blade, shorter than sepals. Stamens 6, slightly tetradynamous; filaments not dilated at base; anthers ovate, apiculate at apex. Nectar glands 4, lateral, 1 on each side of lateral stamen; median glands absent. Ovules 2 per ovary, subapical. Fruit indehiscent, nutletlike silicles, ovoid, slightly 4-angled, sessile; valves thickened, woody, veinless, rough pubescent; replum strongly expanded laterally; septum complete, thickened; style to 1.8 mm, stout, subconical, curved, persistent; stigma capitate, 2-lobed, lobes not decurrent. Seeds wingless, oblong, plump; seed coat smooth, not mucilaginous when wetted; cotyledons accumbent or obliquely so.

One species: C and SW Asia, E Europe, naturalized elsewhere.

  
   Lower Taxon
  • Euclidium syriacum  (Linnaeus) R. Brown  鸟头荠