들괭이밥(2)
https://daehyo49.tistory.com/7812009
들괭이밥(1) (한국식물분류학회지 발표 미기록종/괭이밥 종류 검색표)
https://daehyo49.tistory.com/7811015
학명 : Oxalis dillenii Jacquin
분류 : Oxalidaceae
사진 : 2020.06.16 인천 장수천
선괭이밥처럼 줄기는 직립하지만 지하경은 옆으로 기는 것으로 보인다.
탁엽은 분명치 않고 줄기와 화경의 털은 굽은털이다
종자 표면은 갈색에 넓은 백색 가로 무늬가 선명하다
아래 : 2023.07.07 파주 읍내리
아래 : 2023.07.19 동구릉
Oxalis dillenii Jacquin, Oxalis. 28. 1794.
[E W]
Common yellow wood-sorrel Common yellow wood-sorrel
(학명 이명)
Oxalis corniculata Linnaeus var. dillenii (Jacquin) Trelease; O. dillenii var. radicans Shinners; O. florida Salisbury subsp. prostrata (Haworth) Lourteig; O. lyonii Pursh; O. prostrata Haworth; Xanthoxalis dillenii (Jacquin) Holub
(설명)
Herbs perennial, caulescent, rhizomes present (sometimes appearing taprootlike), stolons
absent, bulbs absent. Aerial stems (1–)2–8 from base, erect initially, often becoming
decumbent or prostrate , 10–25 cm, usually
herbaceous, sometimes becoming woody proximally, densely and evenly strigillose to
strigose from base to peduncles and pedicels,
nonseptate, sharp-pointed>. Leaves basal and cauline; stipules oblong, margins narrowly
flanged or without free portions, apical auricles absent; petiole 1–4 cm, ;
leaflets 3, green, obcordate, (4–)6–15(–21) mm, lobed 1/5–1/3 length, abaxial surface
sparsely strigillose, adaxial surface glabrous, oxalate deposits absent. Inflorescences
usually umbelliform cymes, rarely irregular cymes, 1–3(–8)-flowered; peduncles 1–6(–10) cm. Flowers mostly homostylous; sepal apices without tubercles; petals yellow, without red lines, (2.5–)4–8 mm. Capsules angular-cylindric, abruptly tapering to apex, 12–20(–25) mm,
densely strigose-pilose, , with puberulent understory. <Seeds brown, transverse ridges with strong grayish or white lines>. 2n = 18, 20, 22, 24.
Flowering Feb–May(–Oct). Pastures, roadsides, lawns, river bottoms, sandy, rocky, or gravelly soils; 0–300 m; B.C., Man., N.B., N.S., ont., P.E.I., Que., Sask.; Ala., Ariz., Ark., Colo., Conn., Del., D.C., Fla., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Mont., Nebr., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis., Wyo.; introduced in Bermuda, Europe.
Decumbent stems of Oxalis dillenii often appear stolonlike, producing erect branches and leaves at the nodes, rarely producing a few adventitious roots. Such plants sometimes are misidentified as O. corniculata, but they differ in their overall habit, stems and rhizomes that become woody, reduced stipules, strigillose cauline vestiture, denser fruit vestiture, and seed color. Plants of O. dillenii in Canada and the western United States appear to be adventive.
Plants of Oxalis dillenii flowering into November and December in Texas and North Carolina, and probably elsewhere, characteristically are depressed in habit, with creeping stems and forming matlike colonies. The corollas are small, with petals 2.5–3 mm. Although similar in habit to typical O. corniculata, these plants do not have stems that root at nodes, and the strigillose vestiture, though reduced in density, and the stipule morphology are like O. dillenii. Whether these are the same genotype as spring-flowering plants or a different entity remains to be investigated. At least some of the variability in O. dillenii, particularly in habit, may be genetically partitioned, as dysploid chromosome races apparently exist.
* 용어 homostylous: Having flowers with styles of uniform length, usually equal to that of the stamens.
http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250101490