Comments
(
Inglês
)
fornecido por eFloras
Hypericum japonicum is very variable and, the variation being continuous, eight nodal variants have been recognized but not formally named. Five of these occur in China:
(i) Stems erect to decumbent; inflorescence from terminal node only; bracts linear to lanceolate; sepals narrow ("japonicum" in part). Lowland.
(ii) Stems erect to decumbent; inflorescence from more than one node, sometimes with other branches; bracts linear to lanceolate; sepals narrow ("japonicum" in part). Lowland.
(iii) Stems erect; inflorescence from terminal node; bracts leaflike; sepals narrowly oblong to narrowly elliptic ("maximowiczii"). ?Lowland.
(iv) Stems decumbent to procumbent; inflorescence from terminal node; bracts leaflike; sepals narrowly oblong to narrowly elliptic ("laxum"). Lowland to upland.
(v) Stems decumbent to prostrate; inflorescence from terminal node; bracts leaflike; sepals (at least outer) broadly elliptic to obovate ("calyculatum"). Upland to montane.
- licença
- cc-by-nc-sa-3.0
- direitos autorais
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
(
Inglês
)
fornecido por eFloras
Herbs, annual, 2-45 cm, tall or long, erect to decumbent or prostrate and rooting at base or along stem; stems solitary or ± cespitose, unbranched below inflorescence or variously branched. Stem 4-lined, with scattered gland dots. Leaves sessile; blade usually ovate or ovate-triangular to oblong or elliptic, 0.2-1.8 cm × 1-10 mm; thickly papery, abaxially paler and sometimes glaucous; laminar and intramarginal glands dense; main lateral veins 1-7, basal, tertiary reticulation not visible; base cordate-amplexicaul to cuneate, not decurrent, margin plane, apex obtuse to rounded. Inflorescence 1- to ca. 30-flowered, terminal, sometimes with flowering branches from up to 3 nodes below; bracts and bracteoles lanceolate-subulate to leaflike. Flowers 4-8 mm in diam., stellate; buds cylindric-ellipsoid, apex ± obtuse. Sepals free, erect, narrowly oblong or rarely lanceolate to elliptic, subequal to unequal, 2-5.5 × 0.5-2 mm; laminar glands lines, distally dots; marginal glands absent; apex acute or obtuse to rounded; veins 3-5. Petals pale to bright yellow or orange, obovate to oblong or elliptic, 1.7-5 × 0.8-1.8 mm, 0.4-0.8 × as long as sepals; laminar glands absent; margin entire, eglandular. Stamens 5-30, irregular or in 5 obscure groups when few, longest 1.5-2.8 mm, 0.4-0.8 × as long as petals. Ovary ± broadly ovoid to subglobose; styles (2 or)3, 0.4-0.8(-1) mm, 0.4-0.6 × as long as ovary, spreading. Capsule cylindric to globose, (2-)2.5-6 × 1.3-2.8 mm, usually slightly shorter than to slightly exceeding sepals. Seeds straw-yellow, ca. 0.5 mm; testa finely linear-scalariform. Fl. Mar-Oct, fr. Apr-Nov. 2n = 16.
- licença
- cc-by-nc-sa-3.0
- direitos autorais
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
(
Inglês
)
fornecido por eFloras
S. India, Ceylon, Punjab to Japan, S. Korea and S.E. China, south to New Guinea, S. & S.E. Australia, New Zealand, Hawaii.
- licença
- cc-by-nc-sa-3.0
- direitos autorais
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
(
Inglês
)
fornecido por eFloras
Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangsu, Jiangxi, Liaoning, Shandong, Sichuan, Taiwan, Yunnan, Zhejiang [Bhutan, Cambodia, N and S India, Indonesia (Sumatra to Irian Jaya), Japan, S Korea, Laos, Malaysia, Myanmar, Nepal, Philippines, Sri Lanka, Thailand, Vietnam; SE Australia, Pacific islands (New Zealand)].
- licença
- cc-by-nc-sa-3.0
- direitos autorais
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Elevation Range
(
Inglês
)
fornecido por eFloras
150-2600 m
- licença
- cc-by-nc-sa-3.0
- direitos autorais
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
(
Inglês
)
fornecido por eFloras
Rice fields, ditches, marshes, grasslands, waste places; sea level to ca. 3000 m.
- licença
- cc-by-nc-sa-3.0
- direitos autorais
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
(
Inglês
)
fornecido por eFloras
Brathys japonica (Thunberg) Wight; B. laxa Blume; Hypericum cavaleriei H. Léveillé; H. chinense Osbeck (1757), nom. utique rej., not Linnaeus (1759), nor Retzius (1788); H. japonicum var. calyculatum R. Keller; H. japonicum var. cavaleriei (H. Léveillé) Koidzumi; H. japonicum var. maximowiczii R. Keller; H. japonicum var. thunbergii (Franchet & Savatier) R. Keller; H. laxum (Blume) Koidzumi; H. nervatum Hance; H. thunbergii Franchet & Savatier; Sarothra japonica (Thunberg) Y. Kimura; S. laxa (Blume) Y. Kimura.
- licença
- cc-by-nc-sa-3.0
- direitos autorais
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Hypericum japonicum
(
Inglês
)
fornecido por wikipedia EN
Hypericum japonicum, known as matted St. John's-wort,[3] is an annual herbaceous flowering plant in the St. John's wort family Hypericaceae, in Hypericum sect. Trigynobrathys.
Description
H. japonicum is unusually small for a St. John's wort, growing only 2–5 cm (0.8–2.0 in) tall.[5] Its stems are green and 4-angled, with 2–52 mm (0.1–2.0 in) long internodes that usually exceed the leaves. The leaves are sessile and spreading and are persistent. The species is 30-flowered with flowers branching from up to three nodes.[6] The flowers are 4–8 mm (0.16–0.31 in) in diameter and their petals are bright yellow or orange. The species' stamens number 5–30 in irregular groups or in five groups when few in number. Its seeds are approximately 50 mm (2.0 in) long.[4]
The species flowers primarily from October–March.[7]
The seeds of H. japonicum closely resemble those of the extinct paleospecies Hypericum tertiaerum.[8]
Distribution
The species is found across the Indian subcontinent, China, Southeast Asia, and Oceania.[9] It has been recorded as occurring in Hawaii, however it was determined that this was an error.[4]
Full distribution listing
References
- licença
- cc-by-sa-3.0
- direitos autorais
- Wikipedia authors and editors
Hypericum japonicum: Brief Summary
(
Inglês
)
fornecido por wikipedia EN
Hypericum japonicum, known as matted St. John's-wort, is an annual herbaceous flowering plant in the St. John's wort family Hypericaceae, in Hypericum sect. Trigynobrathys.
- licença
- cc-by-sa-3.0
- direitos autorais
- Wikipedia authors and editors
地耳草
(
Chinês
)
fornecido por wikipedia 中文维基百科
二名法 Hypericum japonicumThunb. ex Murray 地耳草(学名:Hypericum japonicum)为藤黄科金丝桃属下的一个种。
参考文献
扩展阅读
外部連結
这是一篇與
植物相關的
小作品。你可以通过
编辑或修订扩充其内容。
地耳草: Brief Summary
(
Chinês
)
fornecido por wikipedia 中文维基百科
地耳草(学名:Hypericum japonicum)为藤黄科金丝桃属下的一个种。