Common sunflowers in NM:
Perennials:
Helianthus
ciliaris Blue-green,
short, forming extensive colonies from perennial roots. Leaves sessile.
Annual (no rhizomes):
Helianthus annuus -Phyllaries ovate, abruptly narrowed to acuminate tip, ciliate
Helianthus
paradoxus phyllaries lanceolate, gradually tapering to
the tip, not ciliate. Usually no
branches, no white “eye” in flower center. In wetlands.
Helianthus
neglectus phyllaries
lanceolate, gradually tapering to the tip, not ciliate. Usually branched, with a white “eye” in
flower center. Lower leaves w/ cordate
bases. Larger heads than H.
petiolaris.
Helianthus
petiolaris phyllaries lanceolate, gradually tapering
to the tip, not ciliate. Usually
branched, with a white “eye” in flower center. Lower leaves w/o cordate bases.
Key based on Allred's Flora Neomexicana
Key based on Allred's Flora Neomexicana
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