Wednesday, September 23, 2015

Ixeris denticulata morphological characteristics



Biennial herb, Ixeris denticulata top 25 ~ 50cm, with white milk. Taproot astern cone and a few rootlets, bare brown. Stems solitary, branching, cylindrical, added amethyst or gray-green skin, bland and attenuate vertical stripes.

Basal bond leaves, abatement blade broadly ovate-lanceolate, continued 3 ~ 7 cm, amplitude of 1.5 ~ 3cm, acme birdbrained or astute arch blade abject attenuated appearance of the bend was generally bristling absurd teeth or split, lobes admeasurement arrhythmia; Stem leaves continued ovate-lanceolate, continued 3 ~ 7cm, feathered bend absurd teeth or separated, or was the absolute top bend of the abject on both abandon of the ear was continued amplexicaul.

5 to 6 months to accord bearing to a lot of branches capitulum was poly roof corymbose adjustment bracts 2 layer, the alien band of short, 5 to 7, ovoid, about 2 mm, the close band 8 ~ 9, band lanceolate, about 5 ~ 7 mm, the lower allotment by scrambling into a tubular shape, added than 20 per bloom ray florets flowers, corolla yellow, the able top 5 teeth, Corolla breadth of 5 to 7 mm, amplitude 1.5 ~ 2mm, afterwards arc fusiform achenes baby aphotic brown, about 3 mm, with bake-apple beak, blush hardly pale, white crested the top students, an annular array. Born abundance alley or field.

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