Vernonia sp.

 

학명 : Vernonia sp.

분류 : Asteraceae

학명 풀이

Vernon:  English botanist

 

 

 

사진 : 2022.07.25 한택식물원

 

 

 

 

 

 

아래 : 2022.09.13 서울식물원

 

아래 서울식물원에 식재되어 있는 것은 Vernonia noveboracensis Willd. 라는 표지판이 꽃여 있다 

 

 

 

 

 

국표식에 2종이 등재되어 있고 영어 위키에는 350종이 있다고 하는 속이다. 

 

국표식 등재종 

재배식물 정명 Vernonia noveboracensis Willd. 베르노니아 노베보라켄시스 2011/12/08

재배식물 정명 Vernonia fasciculata Michx. 베르노니아 파스키쿨라타

 

속에 대한 FNA 설명

 

Vernonia Schreber, Gen. Pl. 2: 541. 1791.

Ironweed [For William Vernon, d. 1711, English botanist]

 

John L. Strother

 

Perennials, 2–20(–30+) dm (rhizomatous or not). Leaves usually mostly cauline (rarely mostly basal or basal and cauline); sessile or petiolate; blades ovate, elliptic, lanceolate, oblanceolate, spatulate, linear, or filiform, bases usually ± cuneate (rounded-truncate in V. pulchella), margins usually toothed (rarely entire), apices acute to attenuate, abaxial faces usually ± scabrellous to strigillose or tomentose to pannose, sometimes glabrate or glabrous, usually resin-gland-dotted (sometimes ± pitted), adaxial faces ± scabrellous or glabrate, sometimes resin-gland-dotted (rarely pitted). Heads discoid, ± pedunculate, not subtended by foliaceous bracts, (6–)40–100+ in ± corymbiform to paniculiform arrays (6–)10–25+ cm diam. Involucres ± campanulate to obconic or hemispheric, 3–8(–11+) mm diam. Phyllaries 18–70+ in 4–7+ series, the outer ovate to lanceolate or subulate, inner ± lanceolate to oblong, all ± chartaceous, margins entire, often ciliolate, tips rounded (then sometimes apiculate), or acuminate, subulate, or filiform, faces glabrous or sparsely strigillose to tomentose, sometimes ± gland-dotted. Florets 9–30(–65+); corollas usually purplish or pink (rarely white), tubes longer than funnelform throats, lobes 5, lance-linear, ± equal. Cypselae ± columnar, sometimes arcuate, 8–10-ribbed, glabrous or ± strigillose to hirtellous, often resin-gland-dotted; pappi persistent, of 20–30+ outer, erose to subulate scales or bristles plus 20–40+ inner, longer, subulate to setiform scales or bristles. x = 17.

 

Species 20 or so (17 in the flora): mainly c, e North America, n Mexico, 2–3 species in South America.

 

The circumscription of Vernonia adopted here follows that of H. Robinson (1999).

 

Vernonias hybridize; almost every one of the species recognized here has been noted as sometimes hybridizing with one or more others. Putative hybrid plants are usually intermediate between parentals in some traits; such plants may not "key" satisfactorily to any of the species treated here. Some putative hybrids have been named. Vernonia guadalupensis is "without much doubt a hybrid of V. baldwinii Torrey and V. lindheimeri Engelmann & Gray" (L. H. Shinners 1950); V. vulturina Shinners (known only from the type collection) may be a product of V. baldwinii × V. marginata; V. ×georgiana Bartlett may refer to V. acaulis × V. angustifolia. Additional putative hybrids (S. B. Jones 1964) are V. ×concinna Gleason (V. ovalifolia × V. angustifolia), V. ×dissimilis Gleason (V. altissima × V. angustifolia), and V. ×recurva Gleason (V. pulchella × V. angustifolia).

 

In the key and descriptions, "l/w = " refers to lengths divided by widths for blades of leaves; lengths of phyllaries include subulate to filiform tips (if any).

 

SELECTED REFERENCES

 

Gleason, H. A. 1922b. Vernonia. In: N. L. Britton et al., eds. 1905+. North American Flora…. 47+ vols. New York. Vol. 33, pp. 52–95. Jones, S. B. 1964. Taxonomy of the narrow-leaved Vernonia of the southeastern United States. Rhodora 66: 382–401. Jones, S. B. and W. Z. Faust. 1978. Vernonia. In: N. L. Britton et al., eds. 1905+. North American Flora…. 47+ volumes. New York. Ser. 2, part 10, pp. 180–195. Shinners, L. H. 1950. Notes on Texas Compositae. IV. Field & Lab. 18: 25–32.