宜紅針茅檢視原始碼討論檢視歷史
宜紅針茅 |
中文名:宜紅針茅 門:被子植物門 Angiospermae 綱:單子葉植物綱 Monocotyledoneae 目:禾本目 Graminales 科:禾本科 Gramineae 亞 科:早熟禾亞科 Pooideae 族:針茅族 Stipeae 屬:針茅屬 Stipa |
宜紅針茅(yí hóng zhēn máo),學名 Stipa consanguinea Trinius & Ruprecht,多年生植物,叢生。 稈直立或膝曲在基部,15-50厘米高,有節的2。 葉鞘短於節間; 葉片灰綠色,剛毛狀,背面平滑,無毛; 基生葉0.1-0.4毫米,稈的葉舌離開1-1.5毫米圓錐花序簽合同,6-8厘米,基礎在最上的葉鞘內圍住。 微染的小穗略帶紫色;產於 海拔1500-2500米,新疆 。 [1]
形態特徵
多年生植物,叢生。 稈直立或膝曲在基部,15-50厘米高,有節的2。 葉鞘短於節間; 葉片灰綠色,剛毛狀,背面平滑,無毛;
基生葉0.1-0.4毫米,稈的葉舌離開1-1.5毫米圓錐花序簽合同,6-8厘米,基礎在最上的葉鞘內圍住。 微染的小穗略帶紫色;近等長的穎片,2.2-2.6厘米,透明,先端長漸尖;
胼胝體短; 外稃8-10毫米,在長度行業,頭髮更濃的在下部,在芒發音清晰的一枚短的頭髮的戒指里有毛; 脫落的芒,8-11厘米,青春期,膝曲(或者2)的1, 及果期5-7月。
Perennial, tufted. Culms erect or geniculate at base, 15–50 cm tall, 2-noded. Leaf sheaths shorter than internodes; leaf blades grayish green, setaceous, abaxial surface smooth, glabrous;
ligule of basal leaves 0.1–0.4 mm, of culm leaves 1–1.5 mm. Panicle contracted, 6–8 cm, base enclosed in uppermost leaf sheath. Spikelets tinged purplish; glumes subequal, 2.2–2.6 cm, hyaline, apex long acuminate;
callus short; lemma 8–10 mm, hairy in longitudinal lines, hairs denser in lower part, a ring of short hairs at awn articulation; awn deciduous, 8–11 cm, pubescent, 1(or 2)-geniculate, hairs on column 0.2–0.4 mm, bristle slightly flexuous, hairs 0.4–0.7 cm. Fl. and fr. May–Jul.
產地生境
Open stony slopes; 1500–2500 m. Xinjiang [Mongolia (Altai), Russia (Altai)].
開闊的的石質山坡; 海拔1500-2500米,新疆 [蒙古(Altai),俄羅斯(Altai) ].
辨析
This species has sometimes been considered conspecific with Stipa koelzii (a synonym of S. capillacea in this treatment), but it has much larger glumes lacking filamentous tips and more clearly pubescent, non-spiralling awns. It also grows in drier habitats.
本種有時已經被考慮了同種的具Stipa koelzii(在這次處理過程中的一S. capillacea的異名), 它也在乾燥生境裡增長。