Tuesday, November 24, 2015

Malva neglecta (Common Mallow) - Non Native

8/18/04 Visitor Center to South Marsh Loop Trail, Elkhorn Slough National Estuarine Research Reserve, Monterey County, CA 

8/20/03 Link River Nature Trail, Klamath Falls, Klamath County, Oregon


COMMON NAME: Common Mallow, Cheeseweed

SPECIES: Malva neglecta

FAMILY: Malvaceae (Mallow Family)


LOCATION: Link River Nature Trail, Klamath Falls, Klamath County, Oregon


Treatment from The Jepson Manual (1993):

Annual, biennial

Stem decumbent, 2–6 dm, generally densely stellate-hairy

Leaf: blade 2–6 cm, lobes 0 (or 5–7, obscure), crenate

Inflorescence: flowers 3–6 per axil; pedicel in fruit < 25 mm; bractlets 3–5 mm, ± broadly linear

Flower: calyx generally 4–6 mm, not much enlarged in fruit, lobes acuminate; petals 8–13 mm, pale 
lilac or white, claws hairy; stamen-tube hairy

Fruit: segments ± 15, puberulent, back round, smooth or weakly ridged, not net-veined, margins rounded

Ecology: Disturbed places

Elevation: < 3000 m.  

Bioregional distribution: n&c California 

Distribution outside California: native to Eurasia

Flowering time: May–Oct

[sometimes identified as  M. rotundifolia L. or  M. verticillata L. var. crispa L.] The latter would key here, but has glabrous stamen-tube, 8–11 fruit segments; cultivated for salad, likely waif.

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