討論:地耳草
山羊百科，林文智老師的植物、山岳、攝影紀錄
6. Hypericum japonicum Thunb. ex Murray 地耳草(小還魂)
Annual herb 0.02-0.45 m tall, erect to decumbent or prostrate and rooting at base, unbranched below inflorescence or variously branched; stems solitary ± caespitose, 4-lined, with scattered pale glandular dots. Leaves sessile; lamina 0.2-1.8 cm long, 0.1-1 cm broad, usually ovate or ovate-triangular to oblong or elliptic, apex subacute to rounded, base cordate-amplexicaul to cuneate, chartaceous, sometimes glaucous beneath, with 1-3 basal main veins and 1-2 lateral veins but usually no visible reticulate venation, no marginal glands and ± numerous pale laminar glandular dots. Inflorescence 1-30-flowered, dichasial or ± monochasial, with or without axillary branches; flowers 4-8 mm in diam., ± plane, in bud cylindric-ellipsoid, ± obtuse; sepals 2-5.5 mm long, 0.5-2 mm broad, narrowly oblong or lanceolate to elliptic, acute to obtuse, entire, without marginal glands, with laminar pale dots to lines, erect in fruit; petals 1.7-5 mm long, 0.8-1.8 mm broad, elliptic or oblong, light yellow to orange, persistent, without glands; stamens not fascicled, persistent, 5-30; anthers yellow, with amber gland; ovary 1-locular, the (2-)3 styles 0.4-0.6 times as long (0.4-1 mm), free, spreading from base. Capsule 2.5-6 mm long, 1.3-2.8 mm broad, cylindric to globose, not vittate; seeds ca. 0.5 mm long, longitudinally ribbed with fine transverse striae, not carinate, without terminal appendage.
From Japan (S. Hokkaido to Kyushu), Korea (Cheju-do Is.) and southern China to Nepal, Sri Lanka, Australia and New Zealand; throughout Taiwan (rare in the south ?). In open communities, wet (rice fields, marshes, ditches, etc.) or dry (grasslands, waste places), 0-1,900 m.
TAIPEI: Taipei, Sect. 3, Keelung Road, Hsu 4585. ILAN: inter Kinyan et Piyahan, Suzuki 6376. TAOYUAN: Puhsing, Chuang & Kao 3129. HSINCHU: Liau 409. TAICHUNG: Nantonsho, Bansyakyaku, Yamamoto & Mori 8317. NANTOU: Sun Moon Lake, Kudo & Sasaki 15461. YUNLIN: Keisyu, Ensuikoseito, Suzuki 4547. PINGTUNG: Tashulinshan, Yamamoto s. n. 1927. HUALIEN: Luanshan, Hsu 3325.
ヒメオトギリ Hypericum japonicum
- 松江の花図鑑
- ヒメオトギリ Hypericum japonicum
- 西宮の湿生・水生植物
- Atlas of Living Australia
- NSW Flora Online
- Flowers of India
- Flora of India: Botanical Servey of India
地耳草组 Sect. 4. Spachium (R. Kelley) N. Robson
地耳草 Hypericum japonicum Thunb. ex Murray
一年生或多年生草本，高2-45厘米。茎单一或多少簇生，直立或外倾或匍地而在基部生根，在花序下部不分枝或各式分枝，具4纵线棱，散布淡色腺点。叶无柄，叶片通常卵形或卵状三角形至长圆形或椭圆形，长0.2-1.8厘米，宽0.1-1厘米，先端近锐尖至圆形，基部心形抱茎至截形，边缘全缘，坚纸质，上面绿色，下面淡绿但有时带苍白色，具1-条基生主脉和1-2对侧脉，但无明显脉网，无边缘生的腺点，全面散布透明腺点。花序具1-30花，两岐状或多少呈单岐状，有或无侧生的小花枝；苞片及小苞片线形、披针形至叶状，微小至与叶等长。花直径4-8毫米，多少平展；花蕾圆柱状椭圆形，先端多少钝形；花梗长2-5毫米。萼片狭长圆形或披针形至椭圆形，长2-5.5毫米，宽0.5-2毫米，先端锐尖至钝形，全缘，无边缘生的腺点，全面散生有透明腺点或腺条纹，果时直伸。花瓣白色、淡黄至橙黄色，椭圆形或长圆形，长2-5毫米，宽0.8-1.8毫米，先端钝形，无腺点，宿存。雄蕊5-30枚，不成束，长约2毫米，宿存，花药黄色，具松脂状腺体。子房1室，长1.5-2毫米；花柱（2-）3 ，长0.4-1毫米，自基部离生，开展。蒴果短圆柱形至圆球形，长2.5-6毫米，宽1.3-2.8毫米，无腺条纹。种子淡黄色，圆柱形，长约0.5毫米，两端锐尖，无龙骨状突起和顶端的附属.物，全面有细蜂窝纹。花期3-月，果期6-10月。
产辽宁、山东至长江以南各省区。生田边、沟边、草地以及撩荒地上，海拔0-2800米。日本、朝鲜、尼泊尔、锡金、印度、斯里兰卡、缅甸至印度尼西亚、澳大利亚、新西兰以及美国的夏威夷也有。模式标本采自日本。
