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Flora of Taiwan | Family List | Primulaceae | Androsace

Androsace umbellata (Lour.) Merr., Philip. J. Sci. 15: 237. 1919; Kao & DeVol, Fi.Taiwan 4: 70. pl. 915. 1978; Yang & Huang, Fl. Reip. Pop. Sin. 59(1): 158. 1989; Hu & Kelso, Fl. China 15: 86. 1996.


Androsace umbellata

Credit: HAST

  • Drosera umbellata Lour.

    Annual or biennial herb. Stems absent. Leaves radical, pubescent on both surfaces, spreading, ovate-rounded, 5-15 mm in diameter, flat, the margins deltoid-toothed, truncate or wedge-shaped at base, petiolate; petioles 1-3 cm long. Scapes 5-15 cm long; bracts ovate to lanceolate, 4-5 mm long; pedicels pubescent, spreading, slender, 2-4 cm long; calyx spreading, 5-parted nearly to the base, the lobes ovate, 3-5 mm long in anthesis, 4-7 mm long in fruit, pubescent, acute; corolla white, 4-5 mm across, 5-lobed. Capsules ovoid-globose, about 4 mm long, with 5-whitish membranaous valves. Seeds many, glabrous.

    TAIPEI: Kungliao, Liao 1126, Nankang, Academia Sinica, Wang 921. ILAN: Nanfangao, Peng 13737; Nanao, Liu 526. HSINCHU: Shimada 3977. TAITUNG: Lanyu Is, Liao 1168; Lutao Is, Peng 10848. HUALIEN: Tiensiang, Kao 9866; Fengpin, Wang 848.

    Distributed in Japan, Korea, Taiwan and eastern Asia. Seacoast and fields to low altitude in Taiwan.

    Phenology: biennial, annual

    Life form: herb

    Root: rooting at node or not: not rooting at node

    Stem: absent

    Leaf: position: basal

    Phyllotaxy: radical

    Leaf: petiole: petiolate

    Leaf: petiole length (mm): 10-30

    Leaf: blade shape: ovate

    Leaf: blade apex: obtuse

    Leaf: blade base: truncate

    Leaf: blade margin: toothed

    Leaf: blade surface: pubscent

    Leaf: blade texture: herbaceous

    Leaf: blade length (mm): 10-15

    Leaf: blade width (mm): 10-15

    Inflorescence: umbellate

    Inflorescence: position: terminal

    Scape: present

    Scape: length (mm): 40-120

    Peduncle: length (mm): 20-40

    Bract: present

    Bract: length (mm): 3-5

    Bract: width (mm): 1.5-3

    Calyx: shape: 5-parted

    Sepal: shape: ovate

    Sepal: margin: entire

    Sepal: length (mm): 3-5

    Sepal: width (mm): 1.8-2.7

    Corolla: color: white

    Corolla: shape: funnelform, salverform

    Lobe: margin: entire

    Lobe: length (mm): 2-3

    Lobe: width (mm): 1.3-1.8

    Filament fused into a ring or not: filament free

    Filament inserted position: throat of corolla lobe

    Filament: indumentum: glabrous

    Filament and anther relative length: filament obviously shorter than anther

    Stamens protruding from corolla or not: Stamens not protuding from corolla

    Capsule: dehiscence type: longitudinal

    Distribution: seashores, low elevation cultivated field


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