Checklist » Asteraceae » Centromadia pungens ssp. pungens
Last updated 2/19/2008 by David Giblin.
Centromadia pungens (Hook. & Arn.) Greene ssp. pungens[FNA21, HC2]
common spikeweed

Publication: Man. Bot. San Francisco. 196.

Origin: Introduced

selected vouchers: WTU

Notes: Noxious in WA.

FNA21: "Subspecies pungens is circumscribed broadly to include subsp. maritima and subsp. septentrionalis based on morphologic and molecular data (B. G. Baldwin, unpubl.). As treated here, Centromadia pungens subsp. pungens occurs widely in central and northern California, and it is putatively introduced in southwestern California and outside the state."

References: (none)

Synonyms & Misapplied Names:
Hemizonia pungens (Hook. & Arn.) Torr. & A. Gray ssp. septentrionalis D.D. Keck
Hemizonia pungens (Hook. & Arn.) Torr. & A. Gray var. pungens[HC]
Hemizonia pungens (Hook. & Arn.) Torr. & A. Gray var. septentrionalis (D.D. Keck) Cronquist[HC]