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Plant Database

Pinkish flower subtended by bracts with long spines.
Purple Starthistle
Centaurea calcitrapa
Invasive
a mound of starburst leaves and purple tipped white flowers with long spines surrounded by dry, bare earth.
Iberian Starthistle
Centaurea iberica
Invasive
Meadow Knapweed Centaurea pratensis Purple flowers on long stems
Meadow Knapweed
Centaurea pratensis (aka Centaurea jacea x nigra, Centaurea debeauxii ssp. thuillieri)
Invasive
Two spiky flower heads, on spiky stems, with yellow flower
Yellow Starthistle
Centaurea solstitialis
Invasive
Slender stalks with flower buds opening up to whispy purple thin petalled flowers. Bracts have dark tips.
Spotted Knapweed
Centaurea stoebe
Invasive
Port Orford Cedar
Chamaecyparis lawsoniana
Native
a patch of fireweed with spires of purple flowers that taper to a point atop green spears of small lance shaped leaves
Fireweed
Chamerion angustifolium
Native
Canada Thistle Cirsium arvense Flower pods with small purple tufts
Canada Thistle
Cirsium arvense
Invasive
Bull Thistle Cirsium vulgare Spiny casing with purple tuft at top
Bull Thistle
Cirsium vulgare
Invasive
pink flower with red stem and green leaves
Farewell-to-Spring
Clarkia amoena
Native
Old Man's Beard Clematis vitalba Tree with white flowers
Old Man’s Beard
Clematis vitalba
Invasive
a close up photo of a blue and white flower in a grassy field
Large-flowered Blue Eyed Mary
Collinsia grandiflora
Native

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