The morphological characteristics of thistle flower

Morphological characteristics

Deciduous shrubs, 0.3-1 m tall, much branched; bark brown, glabrous; branchlets cylindrical, thin, wrinkled after drying, young branches yellow-green or purple-brown, densely yellowish filamentous pilose, old Branch purple-brown or purple-red, hairless. Leaves opposite, alternate, papery, ovate or ovate-lanceolate to elliptic-oblong, 3-4 cm long, 1-2 cm wide, apex acute or short acuminate, base broadly cuneate or obtuse Round, full margins, green above, blackish brown after drying, light green underneath, yellowish-brown after drying, densely yellowish pilose when young, old veneriform yellow pilose at base of veins only, lateral veins 5-7 pairs, more prominent above; petiole short or few, ca. 2 mm, gray pubescent. Flowers open earlier than leaves, purple or bluish-purple, non-fragrant, often 3-6 clusters borne on leaf axils or lateral, pedicels short, grayish yellow pubescent; calyx tube thin, tubelike, 6-10 mm long , outer mask filiform, lobes 4, ovate or oblong, 5-6 mm long, 4 mm wide, apical rounded, sparsely pubescent outside; stamens 8, 2 round, born in calyx In the upper and middle part of the tube, filaments are short, ca. 0.5 mm, anthers yellow, ovate-elliptic, ca. 1 mm, extending from throat, apically blunt; disk annular, undeveloped; ovary obovate, 2 long Millimeters, densely yellowish pilose, style short or absent, stigma capitate, orange-red. Fruit fleshy, white, elliptic, ca. 4 mm, concealed in lower part of persistent calyx tube, with 1 seed. Flowering period from March to May, fruiting period from June to July.

Branches: much branched, young branches slender, yellow-green, densely yellowish filamentous hair, old branches brown or purplish red, glabrous.

Leaves: Leaves opposite, alternate, papery, ovate, ovate-lanceolate or elliptic, 3-4 cm long, 1-1.5 cm wide, glabrous above, densely yellowish undergrowth when young After the old, only the base of the veins was sparsely hairy, with 5-7 pairs of lateral veins; petiole was about 2 mm long and was gray pubescent.

Flowers: Flowers 3-7 clusters, leaf bracts, pale purple or purple, first leaves flowering. Pedicel short, gray pubescent; calyx tube 0.6-1 cm long, outside filamentous pilose; lobes 4, ovate or oblong, 5 mm long, 4 mm wide, apex rounded, sparsely puberulose outside; Stamens 8, 2; born in middle and upper part of calyx tube, disk annular, undeveloped; ovary obovate, 2 mm long, densely yellowish pilose, style short or few style, stigma orange.


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