명아주 sp. (Dysphania sp.)

학명: Dysphania sp. 

분류:  명아주과(Chenopodiaceae)

 

사진: 151019 중랑천

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아래 식물은 중랑천 제방에 여러 종류의 관상용 화초를 식재하는 과정에 허브 식물로 함께 식재한 것 같다.  우리나라에 아직 소개되지 않은 종으로 보이며 정확한 종명은 알 수 없으나  Dysphania  botrys로 추정한다.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

아래는 종자: 151105

 

 

 

 

 

설명  Flora of China

 

속 분류 키

 

Plants covered with glandular hairs (subglabrous in Dysphania aristata, but then terminal inflorescence branches without flowers, ending with acute setae). 19 Dysphania

+ Plants covered with vesicular hairs (furfuraceous), occasionally glabrous (but then terminal inflorescence branches bearing flowers). 20 Chenopodium

 

 

 

종  분류 키

Plants (especially adaxially on leaves and perianth) with both articulated, stalked glands and sessile (rarely subsessile) glands; perianth segments abaxially longitudinally keeled or crested, spreading in fruit. 2 D. schraderiana

+ Plants with sessile (rarely subsessile) glands; perianth segments not abaxially keeled or with a weak keel, erect in fruit (N Xinjiang). 3 D. botrys

 

 

 

Dysphania schraderiana

Dysphania botrys

Herbs annual, 20-60 cm tall, with a strong odor, covered with articulated, glandular hairs and sessile (rarely subsessile) glands. Stem erect, green striate, usually branched. Petiole 2-10 mm; leaf blade oblong, 2-6 × 1.5-3.5 cm, abaxially glabrous or slightly hairy when young, adaxially pubescent with articulated hairs and yellow, granular glands, rarely almost glabrous, base attenuate, margin pinnately lobed to parted, apex obtuse or acuminate, sometimes mucronate. Compound dichasia axillary. Flowers bisexual. Perianth 1-1.5 mm in diam.; segments 5, spreading in fruit, ovate to narrowly so, longitudinally keeled or crested abaxially, pubescent and with sessile glands, margin narrowly membranous. Stamens 5; filaments flattened; anthers subglobose. Utricle depressed globose; pericarp membranous. Seed horizontal, red-brown or black, sublustrous, 0.5-0.8 mm in diam., finely lineate, rim margin obtuse; embryo semi-annular, surrounding perisperm. Fl. Jul-Sep, fr. Sep-Oct.   Forest margins, meadows, riversides, around houses, sometimes in fields. Gansu, Liaoning, Nei Mongol, Qinghai, Shaanxi, Shanxi, Sichuan, Xizang, Yunnan [Africa, SW Asia, S Europe; naturalized in North America and locally elsewhere]. For practical and nomenclatural reasons, Dysphania schraderiana is accepted here in a broad sense. Probably most (or all) records of this species from China belong to a distinct Asian entity (closely related species or subspecies) known as Chenopodium nepalense Link ex Colla (Herb. Pedem. 5: 571. 1836; C. multiflorum Moquin-Tandon), for which no combination in Dysphania is yet available. Judging from its characters, this plant occupies a transitional position between D. botrys and D. schraderiana. According to Uotila (in Fl. Iranica), C. nepalense differs from D. schraderiana s.str. in having perianth segments rather weakly keeled (not distinctly crested), and the keel bearing simple, eglandular hairs (in D. schraderiana s.str. the perianth segments are abaxially glabrous or subglabrous). Taxonomic relationships and distributional patterns of these related species or infraspecific taxa need clarification.

Herbs annual, yellow-green, 20-50 cm tall, with a strong odor, covered with stalked, glandular hairs. Stem erect, mostly branched from base. Petiole 2-10 mm; leaf blade oblong, 2-4 × 1-2 cm, base cuneate, margin pinnately parted, apex subobtuse, sometimes mucronulate; lobes obtuse, usually obtusely toothed; upper leaves lanceolate, smaller, margin entire. Compound dichasia axillary, forming tower-shaped panicles on upper branches. Flowers bisexual. Perianth segments (4 or)5, erect in fruit, yellow-green, oblong, abaxially glandular, not longitudinally keeled or only weakly keeled, margin membranous, apex subobtuse or acuminate. Stamens 1-3. Stigmas 2, filiform. Utricle depressed globose; pericarp whitish, membranous . Seed horizontal, black, sublustrous, depressed, 0.75-1 mm in diam., almost unpitted, rim margin obtuse, slightly sulcate. Fl. Jul-Aug, fr. Aug-Sep.        Valleys, river terraces, around houses, roadsides. N Xinjiang [N Africa, C and SW Asia, S Europe; locally naturalized in other subtropical to warm-temperate regions].

 

 

상기 2종의 화피 세밀화 비교

 

 

Dysphania schraderiana (Roemer & Schultes) Mosyakin & Clemants,

 

 

 

 

 

회피에 닭벼슬같은 용골이 있다

 

 

 

 

Dysphania botrys (Linnaeus) Mosyakin & Clemants

 

 

 

 

 

 

화피에 용골은 없고 자루가 있는 밀선이 있다

 

 

사진 출처

http://alienplantsbelgium.be/content/dysphania-schraderiana

http://alienplantsbelgium.be/content/dysphania-botrys