California Native Plant Link Exchange
Plants that Grow with

Ageratina occidentalis - western snakeroot, western joepiweed, Western Eupatorium

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40 records   (plants with the highest coincidence score) • number of sources  
Scientific Name Common Name Lifeform Score •
Ageratina occidentalis western snakeroot, western joepiweed, Western Eupatorium Perennial herb 1.000 4
Phlox diffusa spreading phlox Perennial herb 0.723 3
Hieracium albiflorum white hawkweed, White Flowered Hawkweed Perennial herb 0.722 1
Vicia americana var. americana American vetch Perennial herb, Vine 0.700 1
Hypericum formosum var. scouleri Scouler's St. Johnswort, Scouler's St. John's wort Perennial herb 0.700 1
Epilobium brachycarpum Panicled Willow herb, autumn willowweed, Annual fireweed Annual herb 0.700 1
Achillea millefolium common yarrow Perennial herb 0.700 72
Bromus carinatus var. carinatus Mountain Brome, California brome Perennial herb 0.700 26
Poa secunda ssp. secunda Pine Bluegrass, one sided blue grass, Sandberg's Bluegrass Perennial herb 0.693 17
Leptodactylon pungens mountain prickly phlox, granite prickly phlox, Granite gilia Shrub 0.693 2
Orobanche fasciculata Fascicled Broom rape, clustered broomrape, clustered broom rape Perennial herb (parasitic) 0.685 1
Mentzelia laevicaulis Blazing Star, smoothstem blazingstar, Giant Blazingstar Perennial herb 0.678 8
Solidago californica California goldenrod, oreja de liebre Perennial herb 0.678 27
Agrostis pallens thingrass, seashore bentgrass, Bent grass Perennial herb 0.678 14
Sambucus mexicana blue elderberry Tree, Shrub 0.677 57
Elymus multisetus big squirreltail Perennial herb 0.670 10
Heracleum lanatum cow parsnip Perennial herb 0.670 25
Calyptridium umbellatum Pussy paws, cistanthe, Pussy toes Annual, Perennial herb 0.670 6
Festuca occidentalis western fescue Perennial herb 0.670 9
Carex subfusca Rusty Slender Sedge, brown sedge Perennial herb 0.669 6
Koeleria macrantha junegrass, June Grass Perennial herb 0.663 26
Prunus emarginata bitter cherry Tree, Shrub 0.663 17
Amelanchier utahensis Service Berry, western serviceberry, Pale leaved serviceberry Shrub 0.655 12
Pinus lambertiana sugar pine Tree 0.648 13
Symphoricarpos mollis creeping snowberry, Trailing Snowberry Shrub 0.647 21
Eschscholzia californica California poppy Annual, Perennial herb 0.647 46
Cystopteris fragilis brittle bladderfern, Bladder fern, fragile fern Fern 0.647 2
Bromus orcuttianus Orcutt's brome Annual herb 0.640 1
Hackelia micrantha Jessica sticktight, Small flowered Stickseed, Jessica's stickseed Perennial herb 0.640 1
Arceuthobium campylopodum western dwarf mistletoe, Pine Mistletoe, Golden Mistletoe Perennial herb (parasitic) 0.632 1
Solidago canadensis ssp. elongata Meadow Goldenrod, Canadian Goldenrod, Canada goldenrod Perennial herb 0.625 5
Pinus jeffreyi Jeffrey pine Tree 0.625 14
Carex rossii Ross sedge, Ross' sedge Perennial herb 0.625 1
Lupinus bicolor miniature lupine, Bicolored lupine, Annual Lupine Annual, Perennial herb 0.624 18
Eriogonum lobbii var. lobbii Lobb's buckwheat, Granite buckwheat Perennial herb 0.618 1
Fritillaria atropurpurea spotted fritillary, mountain fritillary, Purple Fritillary Perennial herb 0.618 3
Collomia grandiflora large flowered collomia, grand collomia, Mountain collomia Annual herb 0.617 2
Amsinckia menziesii var. intermedia common fiddleneck, orange flowered Menzies' fiddleneck Annual herb 0.610 1
Cryptantha torreyana Torrey's Cryptantha Annual herb 0.610 1
Purshia tridentata var. tridentata antelope bitterbrush Shrub 0.610 21
Minuartia douglasii Sandwort, Douglas' stitchwort Annual herb 0.610 1

    NB: Coincidence of plants shown on this page is based on observation and specimen data compiled by various sources.