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Lapsanastrum apogonoides
(Maxim.) J.H. Pak & K. Bremer
Family:
Asteraceae
Japanese Lapsanastrum
FNA
Resources
David J. Bogler in Flora of North America (vol. 19, 20 and 21)
Stems
slender, weak, flattened.
Leaves:
basal blades 40-100 × 10-25 mm, dentate, apices obtuse.
Phyllaries
broadly lanceolate, thin, scarcely keeled, 4-5 mm, stellately spreading in fruit.
Corollas
6-10 mm.
Cypselae
straight, 4-5 mm.
2
n
= 16.
Flowering May-Jun. Cultivated fields, disturbed areas, low boggy areas; 10-100 m; introduced. Oreg.; Asia (China, Japan, Korea).
Lapsanastrum apogonoides
is distinguished by its prostrate habit, weak stems, lyrate leaves, and 5 phyllaries spreading in fruit.
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