柴達木黃耆
柴達木黃耆 |
中文學名::柴達木黃耆 二名法::Astragalus kronenburgii B. Fedtsch. ex kneuck. var 界 ::植物界 門 ::被子植物門(Magnoliophyta) 綱 ::雙子葉植物綱(Magnoliopsida), 又稱木蘭綱。 亞綱::薔薇亞綱(Rosidae) 目 ::豆目(Fabales) 科 ::豆科(Leguminosae sp.) 亞科::蝶型花亞科(Faboideae) 族 ::山羊豆族、黃耆亞族 屬 ::黃耆屬(Astragalus Linn.), 也稱:黃芪屬。 種 ::古利恰黃耆 亞種::柴達木黃耆(變種) 分布::分布於中國大陸的 |
柴達木黃耆,(chái dá mù huáng qí,學名 Astragalus chaidamuensis (S. B. Ho) Podlech et L. Z. Shue,異名:Astragalus kronenburgii var. chaidamuensis ), 界: 植物界 Plantae 門: 被子植物門 Magnoliophyta 綱: 雙子葉植物綱 Magnoliopsida (未分級) I類真薔薇分支 eurosids I 目: 豆目 Fabales 科: 豆科 Fabaceae 屬: 黃芪屬 Astragalus 種: 古利恰黃耆 A. kronenburgii 變種: 柴達木黃耆 A. k. var. chaidamuensis。
目錄
形態特徵
多年生草本,被灰白色伏貼毛,高10-20厘米。 莖短縮,長約1厘米,木質化,數個形成疏叢狀。
羽狀複葉有7-11片小葉,長3-8厘米;葉柄與葉軸等長,或為葉軸長的1/3;托葉基部與葉柄貼生,上部三角形,草質,被白色長毛;小葉狹披針形,長7-15毫米,寬1-1.5毫米,先端尖,兩面被灰白色或近銀白色伏貼毛。
總狀花序生3-8花,排列稍密集成傘房狀,後漸伸長;總花梗比葉長1.5-2倍,長7-15厘米;苞片披針形,較花梗長,被黑白色混生毛;花萼管狀,長3-10毫米,被黑白色混生毛,有時僅在萼齒上有黑色毛,萼齒狹線形,長約為萼筒的1/3;
花冠藍紫色,旗瓣長16-20毫米,瓣片菱狀長圓形,先端微缺,中部微縊縮,有極短的瓣柄,翼瓣長13-17毫米,瓣片長圓形,先端2裂,瓣柄與瓣片等長,龍骨瓣較翼瓣短,先端微尖,瓣片與瓣柄等長;子房近無柄,被微毛。
莢果未見。 花期7月。[1]
var. chaidamuensis S. B. Ho in Bull. Bot. Res 3 (1): 42. f. 1. 1983.
Astragalus kronenburgii B. Fedtschenko var. chaidamuen-sis S. B. Ho, Bull. Bot. Res., Harbin 3(1): 42. 1983.
Plants ca. 18 cm tall, nearly acaulescent, caespitose, vege-tative parts covered with medifixed, appressed, white hairs 0.3-1 mm. Stems branched at base, parts of current year, if developed, up to 0.5 cm, densely hairy. Leaves of sterile shoots 1-2 cm; stipules ca. 2 mm, densely hairy; petiole 0.5-1 cm, with 1 or 2 pairs of small leaflets 2-3 mm. Leaves of flowering shoots 3-7 cm; petiole 1-2 cm, like rachis densely hairy; leaf-lets in (2 or)3 or 4 pairs, linear, 10-15 × 1-1.5 mm, both sur-faces ± densely hairy, apex acute. Racemes subumbellate, 3-7-flowered; peduncle 5-14 cm, loosely to rather densely white hairy; bracts 1-2 mm, sparsely furnished with mostly basifixed white and black hairs. Calyx ca. 10 mm, loosely to rather densely covered with medifixed, appressed, white hairs 0.5-1 mm and mostly slightly shorter black hairs; teeth 2.2-3 mm. Petals probably yellow; standard elliptic, 15-17 × 6-7 mm, apex emarginate; wings ca. 15 mm, limbs deeply incised; keel ca. 12 mm. Ovary with a stipe ca. 2 mm, linear, white hairy. Legumes unknown.
● 3000-3300 m. Gansu, Qinghai, ?Xinjiang.
The Chinese record of Astragalus nematodes Bunge ex Boissier from Xinjiang (FRPS 42(1): 264. 1993) is possibly based on a misiden-tification of A. chaidamuensis. Astragalus nematodes is not known to occur in China.The Chinese record of Astragalus nematodes Bunge ex Boissier from Xinjiang (FRPS 42(1): 264. 1993) is possibly based on a misiden-tification of A. chaidamuensis. Astragalus nematodes is not known to occur in China.
生長環境
主要生長在海拔3000米的沖積扇地及河灘石隙中。 [2]
分布範圍
本種提示
本變種與原變種不同處在於托葉草質,被白色長毛;苞片被黑白色混生毛;花序短,僅具3-8花;萼筒口部不偏斜。[4]
參考來源
- ↑ 《中國植物志》 第42(1)卷 (1993) >> 268頁 PDF >> 柴達木黃耆 Astragalus kronenburgii var. chaidamuensis
- ↑ 柴達木黃耆(變種) .中國植物物種信息數據庫[引用日期2013-01-10]
- ↑ 柴達木黃耆Astragalus kronenburgii B. Fedtsch. ex Kneuck. var... 種中文名:柴達木黃耆種拉丁名:Astragalus kronenburgii B. Fedtsch. ex Kneuck. var. chaidamuensis S.B.Ho科中文名:豆科科拉丁名:Leguminosae...
- ↑ 柴達木黃耆, 植物智, 2020-01-18