Oriental false hawksbeard (Invasive Plants of Maryland)

Oriental false hawksbeard

Youngia japonica

Description ¹⁰

Stems terete, fistulose. Leaves: petioles 1–10 cm, glabrous, puberulent, or densely hairy (hairs often brownish, crinkled); blades 3–12(–25) × 2–4(–6) cm, lateral lobes 0–20, mostly gradually reduced proximally, terminal lobes elliptic, ovate, obovate, or oblong-truncate, larger than laterals, apices obtuse or acute. Peduncles 1–5(–15) mm. Phyllaries 3.5–6 mm, bases and midribs becoming ± spongy, abaxial faces glabrous, glabrate, or hairy (hairs appressed, shining). Florets: corollas mostly 4.5–6.5 mm; anthers dark green (drying purplish); styles and style-branches yellow. Cypselae 1.5–2.5 mm, bases hollow, lightly calloused; pappi 2.5–3.5 mm, slightly surpassing phyllaries. 2n = 16.

Distribution and habitat ¹¹

Youngia japonica is native to eastern Asia in China and Japan. However, it has been spread far from its initial range, and is now found as a non-native species nearly worldwide. It is present in Africa, Australia, Europe, North America, and South America. In the United States, it is spreading rapidly, although it is largely restricted to areas in the Southeast. It grows well in response to human disturbance, and is found in areas in areas such roadsides, cultivated fields, and in lawns. In China, it is found in a variety of natural and disturbed habitats. It is known to penetrate into intact natural communities as an invasive species in the United States.

Miscellaneous details ¹²

"Notes: Western Ghats & Eastern Ghats, Evergreen Forests"

Sources and Credits

(c) Jason Sharp, some rights reserved (CC BY-NC-SA), uploaded by Jason Sharp, http://www.flickr.com/photos/78235221@N05/7161462972
Michael Kesl, no known copyright restrictions (public domain), https://www.biolib.cz/IMG/GAL/57080.jpg
(c) W. L. Wagner, some rights reserved (CC BY-NC-SA), https://collections.nmnh.si.edu/services/media.php?env=botany&irn=10242132
Michael Kesl, no known copyright restrictions (public domain), https://www.biolib.cz/IMG/GAL/57081.jpg
(c) W. L. Wagner, some rights reserved (CC BY-NC-SA), https://collections.nmnh.si.edu/services/media.php?env=botany&irn=10242130
(c) W. L. Wagner, some rights reserved (CC BY-NC-SA), https://collections.nmnh.si.edu/services/media.php?env=botany&irn=10235995
(c) Suzanne Cadwell, some rights reserved (CC BY-NC), http://www.flickr.com/photos/scadwell/8704658339/
(c) mpatel6, some rights reserved (CC BY-NC)
no rights reserved, uploaded by Jesse Rorabaugh
(c) Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/4990720
(c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Youngia_japonica
(c) India Biodiversity Portal, some rights reserved (CC BY), http://eol.org/data_objects/26339086

More Info

Range Map

iNat Map

Flower color	yellow

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