미국풀솜나물
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산들꽃
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산들꽃
과 | 국화과(Asteraceae) |
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속 | 자주풀솜나물속(Gamochaeta) |
국명 | 미국풀솜나물(외래식물) |
학명 | Gamochaeta pensylvanica (Willd.) Cabrera |
개요 | Gamochaeta pensylvanica (Willd.) Cabrera, Bol. Soc. Argent. Bot. 9: 375 (1961). Gnaphalium pensylvanicum Willd., Enum. Pl. 2: 867 (1809). Type: Buenos Aires, 1767, Commerson s.n.,(holotype: P photograph!). Annuals, 10-50 cm tall, taprooted. Stems erect to decumbent, simple or more often branching from base, loosely tomentose. Leaves basal and cauline; basal ones withering at flowering; cauline ones sessile; blades spatulate to oblanceolate-obovate, 25-80 mm long, 6-21 mm wide, apices often apiculate, margin entire or slightly wavy, faces concolor or weakly bicolor, loosely tomentose. Heads in spiciform, 3-4 mm long. Phyllaries in 3-4 series, outer ovate, 2.0-2.5 mm long; inner oblong, 3.0-3.5 mm long. Ray florets pistillate; corollas purplish distally, 2.0-2.2 mm long. Disc florets bisexual, 3-4; corollas purplish distally, lobes 5; 2.0-2.2 mm long. Cypselae brown, elliptic, ca. 0.5 mm, minutely glandular; Pappus white, barbellate, 2.0-2.5 mm long, connate at base into a ring. (Figs. 3, 4). Korean name: Mi-guk-pul-som-na-mul (미국풀솜나물). Flowering: Mar. to May. Distribution: America, Africa, Australia, Europe, New Zealand, China, Japan and Korea. Korea: Jeju-do. |
근연종* | 1. Basal leaves persistent at flowering; cauline leaves densely tomentose at abaxial; inner phyllaries 4.0- 5.0 mm long ····················· G. purpurea 자주풀솜나물 1. Basal leaves withering at flowering; cauline leaves loosely tomentose at abaxial; inner phyllaries 3.0- 3.5 mm long ··············· G. pensylvanica 미국풀솜나물 |
참고문헌 | https://doi.org/10.11110/kjpt.2014.44.1.13 |