The original plant morphology of Cuscuta

The original form of the plant

1. Dodder annual parasitic herb. Stem winding, yellow, slender, about 1mm in diameter, multi-branched, parasitic roots everywhere, extending into the body. Leaves sparse, scaly, triangular-ovate. Flowers bisexual, numerous and clustered into small umbels or umbels; bracts small, scaly; pedicels slightly thicker, ca. 1 mm; calyx western too, ca. 2 mm, below middle, plexiate, lobes 5, triangular, Apex obtuse; corolla white, pot-shaped, ca. 3 mm, 5-lobed, lobes triangular-ovate, apex acute or obtuse, reflexed outward, corolla basal with scales 5, oblong, apex and fringed Stamens 5, born in corolla lobes, short filaments, anthers exposed outside corolla lobes; pistil 2, carpels connate, ovary subglobose, 2-celled, styles 2, stigma capitate. The capsule is nearly spherical, slightly flat, about 3 mm in diameter, and is surrounded almost by a persistent corolla, which is mature and cracked. 2-4 seeds, yellow or tan oval, about 1.4-1.6mm long, rough surface. Flowering from July to September, fruiting from August to October.

2. Morphology of the southern reeds and the dodder seedlings are similar. The difference is that: the stamens are born in the corolla to understand the bent position, the filaments are longer, and the tip of the scales at the base of the corolla is 2 cracks; the bottom part of the corolla is surrounded by the persistent corolla. Neatly cracked; seeds usually four, oval, 0.7-2mm long, light brown. Flowering and fruiting period from June to August.

3. The main difference with the Cuscuta is: thicker stems, fleshy, diameter 1-2.5mm, yellow or red stem often with purple-red spot. Inflorescences spicate, as long as 3 cm, often more branched at base; calyx bowl-shaped, endoplasmic, often purple-red, nodules on back; styles simple, stigma 2-lobed. The pods are ovoid, about 5 mm long; the seeds are 1-2, 3-3.5 mm long, and the seed coat yellow to yellow-brown. Flowering from August to October, fruiting from September to November.


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