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Flora of Taiwan | Family List | Primulaceae | Anagalis

Anagalis arvensis L., Sp. Pl. 148. 1753; Kao & DeVol, Fl. Taiwan 4: 68. pl. 914. 1978; Hu, Fl. Reip. Pop. Sin. 59(1): 136; Hu & Kelso, Fl. China 15: 79. 1996.


Anagalis arvensis

Credit: HAST

Glabrous, annual or biennial, glabrous, whitish or glauous herb; stems 4-angled, many-branched, prostrate at base, 10-30 cm long. Leaves opposite, sessile, ovate, 10-25 mm long, 5-15 mm wide, spreading, the margins entire, acute to subobtuse at apex, rounded at base. Flowers axillary, the pedicels 2-3 cm long; calyx segments linear-lanceolate, long-acuminate, 4-6 mm long; corolla bluish-purple to reddish, the lobes obovate-orbicular, serrate at apex, often ciliolate. Capsules globose, the dehiscence circumscissile; seeds small, dark brown.

TAIPEI: Nankang, Peng 12496; Yehliu, Chuang 2096. TAOYUAN: Shalun, Peng 7723; Kuanyin, Leu 1717. HSINCHU: Lienhuashih, Peng 11541, Hsiangshan, Huang & Huang 13022. MIAOLI: Hsihu, Peng 13947. TAICHUNG: Tatushan, Hsu & Kouh 10761. CHANGHUA: Lukang, Ou & Kao 8895; Hsiensi, Huang 1461. TAINAN: Huwei, M. Ashiri 181; Chiali, Morimoto 48. PENGHU: Kudo & Mori 3095.

Distributed throughout temperate and south Asia, NW Africa, Australia, Europe, North and South Americad. Taiwan, in seashore and cultivated fields of low altitudes .

Phenology: biennial, annual

Life form: herb

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

Stem: present

Stem: type: prostrate at base, slender

Stem: shape: angled

Stem: indumentum: glabrous

Leaf: position: cauline

Phyllotaxy: opposite

Leaf: petiole: sessile

Leaf: blade shape: ovate

Leaf: blade apex: acute

Leaf: blade base: rounded

Leaf: blade margin: entire

Leaf: blade surface: glabrous

Leaf: blade texture: herbaceous

Leaf: blade length (mm): 10-25

Leaf: blade width (mm): 5-15

Inflorescence: solitary

Inflorescence: position: axillary

Scape: absent

Peduncle: length (mm): 20-30

Bract: absent

Calyx: shape: 5-parted

Sepal: shape: linear, lanceolate

Sepal: margin: entire

Sepal: length (mm): 3-6

Sepal: width (mm): 1-2

Corolla: color: purple, reddish, bluish

Corolla: shape: rotate

Lobe: margin: serrulate

Lobe: length (mm): 4-6

Lobe: width (mm): 2-4

Filament fused into a ring or not: filament fuse to a ring

Filament inserted position: base of corolla lobe

Filament: indumentum: hairy

Filament and anther relative length: filament obviously longer than anther

Stamens protruding from corolla or not: Stamens protuding from corolla

Capsule: dehiscence type: circumscissile

Distribution: seashores, low elevation cultivated field


Related Objects  
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