Description
provided by eFloras
Shrubs, more than 0.5 m tall; branches ± ascending. Stems persistently 4-angled or narrowly 4-winged; internodes 1-2.5 cm, shorter than leaves. Leaves sessile; blade narrowly elliptic to lanceolate or narrowly oblong-elliptic, 1.9-7 × 0.5-1.6 cm, thickly papery, abaxially paler but not glaucous; laminar glands dots, prominent; abaxial glands absent; main lateral veins 2- or 3-paired, sometimes forming intramarginal vein, tertiary reticulation faint or nearly invisible; base cuneate, apex acute to subacute or rounded-apiculate. Inflorescence 1-flowered, terminal and on short subsidiary branches from up to ca. 6 nodes below; bracts leaflike, bracteoles leaflike to subulate, entire, deciduous. Pedicels 6-12 mm. Flowers ca. 2.5 cm in diam., substellate; buds ovoid, apex acute. Sepals free or nearly so, erect, subequal to unequal, oblong-linear to elliptic or oblanceolate, 5-8 × 1-2(-3) mm, laminar glands mostly lines, margin entire, apex subacute to acute or short acuminate. Petals bright yellow, tinged red, obovate, 1-2 cm × ca. 6 mm, 1.5-2 × as long as sepals; margin entire, eglandular; apiculus obsolete. Stamen fascicles each with ca. 25 stamens, longest 9-10 mm, ca. 0.8 × as long as petals. Ovary ± narrowly ovoid, 2-4 × 0.7-1.3 mm; styles (3.3-)4-7 mm, 2-2.5 × as long as ovary; stigmatic mass capitate. Capsule narrowly ovoid to cylindric, 7-9 × 3-4 mm, ca. 2 × as long as sepals. Seeds dark yellowish brown. 0.9-1.1 mm, with long terminal expansion; testa linear-reticulate. Fl. Mar-Jul, fr. Aug-Jan.
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- cc-by-nc-sa-3.0
- copyright
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
provided by eFloras
E and N Taiwan (Hualian, Ilan, Taibei).
- license
- cc-by-nc-sa-3.0
- copyright
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
provided by eFloras
● Open limestone rock crevices; 400-900 m.
- license
- cc-by-nc-sa-3.0
- copyright
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
provided by eFloras
Hypericum kushakuense R. Keller; Takasagoya subalata (Hayata) Y. Kimura.
- license
- cc-by-nc-sa-3.0
- copyright
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
方茎金丝桃
(
Chinese
)
provided by wikipedia 中文维基百科
方茎金丝桃（学名：Hypericum subalatum）为金絲桃科金丝桃属下的一个种。
分布
台灣特有種，分布於北部及東部海拔400~900 m的山坡地，多生長於石灰岩縫中。[1][2]
特徵
方莖金絲桃的生活型態為灌木，莖具四稜或四狹翼，為此種主要的辨識特徵。
葉無柄， 1.9-7 cm長，0.5-1.6 cm寬，紙質，窄橢圓形至狹披針形或長橢圓形，葉尖銳尖形至稍銳尖形或圓形而突尖，葉基楔形，葉背顏色較淡，近葉緣的葉脈明顯，網狀脈則極不明顯，具淡色的腺點。
花序由1-3朵花組成，頂生，有時會有多達6對腋生花的枝條或單一朵花的短枝，花朵直徑2.5 cm，花芽呈卵形，先端銳尖；萼片長5-8 mm，寬1-3 mm，倒披針形或橢圓形至長橢圓直線形，先端稍銳尖至銳尖或短漸尾尖形，全緣，在果實則呈直立狀；花瓣10-12 mm長，6-7 mm寬，倒卵形，黃色，早落；5叢雄蕊叢生，每一叢有15枚雄蕊，會脫落；花藥黃色，具琥珀色腺體；子房2-4 mm長，狹卵形，有5個子房室，5枚花柱完全合生。
蒴果7-9 mm長，3-4 mm寬，狹卵形至圓柱形；種子0.9-1.1 mm長，深黃褐色，頂端有附屬物。[1][3]
參考文獻
方茎金丝桃: Brief Summary
(
Chinese
)
provided by wikipedia 中文维基百科
方茎金丝桃（学名：Hypericum subalatum）为金絲桃科金丝桃属下的一个种。
