
 (圖1-12)株高可達(dá)1m。根狀莖短粗。葉簇生,直立,二型:不育葉為2回羽狀,三角狀闊卵形,長(zhǎng)30~50cm,寬20~40cm,葉柄長(zhǎng)20~50cm,禾稈色;羽片3~5對(duì),對(duì)生,長(zhǎng)圓形,長(zhǎng)15~25cm,基部寬8~13cm,基部1對(duì)稍大;小羽片5~9對(duì),對(duì)生或近對(duì)生,無(wú)柄,長(zhǎng)4~7cm,寬 (共 398 字) [閱讀本文] >>
海量資源,盡在掌握
 (圖1-12)株高可達(dá)1m。根狀莖短粗。葉簇生,直立,二型:不育葉為2回羽狀,三角狀闊卵形,長(zhǎng)30~50cm,寬20~40cm,葉柄長(zhǎng)20~50cm,禾稈色;羽片3~5對(duì),對(duì)生,長(zhǎng)圓形,長(zhǎng)15~25cm,基部寬8~13cm,基部1對(duì)稍大;小羽片5~9對(duì),對(duì)生或近對(duì)生,無(wú)柄,長(zhǎng)4~7cm,寬 (共 398 字) [閱讀本文] >>