学名(拉丁名) | Filago spathulata |
中文名 | 匙叶絮菊 |
命名人 | Presl |
中文科名 | 菊科 |
拉丁属名 | Filago |
类型 | species |
拉丁科名 | Compositae |
中文属名 | 絮菊属 |
学名(拉丁名) | Filago spathulata |
中文名 | 匙叶絮菊 |
拉丁属名 | Filago |
类型 | species |
拉丁科名 | Asteraceae |
学名(拉丁名) | Filago spathulata |
中文名 | 匙叶絮菊 |
中文科名 | 菊科 |
拉丁属名 | Filago |
类型 | species |
拉丁科名 | Asteraceae |
中文属名 | 絮菊属 |
Herbs, annual. Stems 5-80 cm tall, generally branching from base, with erect or ascending branches, often slightly sinuate, forkedly branching at apex, gray appressed pubescent. Leaves thin, oblong-spatulate, 1.5-2 cm × 4-6 mm, pubescent with long appressed gray tomentum sparsely on both sides, narrowed to base, apex obtuse or shortly acuminate. Capitula ovate, ca. 5 mm, gathered in 10s-15s into dense ± globose corymbs, 6-12 mm in diam., arranged in bifurcations of stems and at apices of branches; floral leaves slightly exceeding capitula in length. Involucre 3-5-seriate; outer phyllaries lanceolate, cymbiform, 5-5.5 × ca. 1 mm, abaxially with distinct light gray long lanate pubescence, apex straight or slightly unbent, thin, with subulate acumen; inner phyllaries broadly lanceolate, flat, 4-4.5 mm, scarious, becoming green in middle, transparent white at margin, long acuminate at apex; innermost phyllaries lanceolate, shortly acuminate, or oblong-ovate, obtuse, flat, transparent white, glabrous. Bisexual florets 5-7. Achenes oblong-obovate, 0.5-0.8 × 0.2-0.4 mm, finely papillate, outer achenes epappose, inner ones bearing a few bristles. Pappus of bisexual florets with 12-14 bristles.
Dry slopes, dunes. Xinjiang, Xizang [Kazakhstan, Russia; SW Asia (Iran), Europe].
2. 匙叶絮菊
Filago spathulata Presl, Delic. Prag. 93. 1822; Boiss., Fl. Or. 3: 246. 1875; Rech. f. Symb. 2: 27, 1955; Smolj., in Komar., Fl. URSS. 25: 321, t. xx, f. 3. 1959; Kitam., Fl. Afghan., 429. 1960.——Filago germanica Hook. f., Fl. Brit. Ind. 3: 277. 1881. non L.——Gifola germanica Cass. in Bull. Soc. Philom. 143. 1819. ——Filago germanica var. spathulata DC., Prodr. 6: 247. 1837.
一年生草本,茎直立,高5-80厘米,通常自基部分枝,分枝斜升,稍弯曲,顶端分枝二叉状,全株被灰白色贴生短柔毛。叶长椭圆状匙形,长1.5-2厘米,宽4-6毫米,顶端钝或短渐尖,基部楔形,两面被贴生灰白色的长柔毛。头状花序长5毫米,卵圆形,10-15个在茎或枝顶端密集成圆球状复伞房状;花序径16-12毫米。苞叶平展,稍长于复伞房状花序;总苞片5层,外层披针形,龙骨状,长5-5.5毫米,背面有亮灰色棉毛;内层宽披针形,平展,膜质,内层苞片变绿色,边缘白色,顶端渐尖,最内层总苞片披针形,短渐尖或长椭圆状卵形,顶端钝,平展,透明,亮白色。两性花约5-7个,瘦果长椭圆状倒卵形,长0.5-0.8毫米,有小乳头状突起;外层雌花瘦果无冠毛;内层雌花的瘦果有少数毛状的冠毛;两性花有12-14个毛状的冠毛。
据文献载此种分布于欧洲、苏联高加索及中亚地区、伊朗。在我国新疆及西藏西部也有分布,但未见到标本。上述记载摘译自《苏联植物志》第25卷。