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Plants of Channel Islands National Park

The plants most often spotted in Channel Islands, ranked by recent research-grade observations.

19,784
recent observations
50
species listed
50
plants

Naturalists have logged 19,784 research-grade observations across the 50 most-recorded species in Channel Islands. The most frequently seen is the Giant Coreopsis, with 1,662 recorded sightings.

Rarer finds confirmed in Channel Islands include Torrey Pine - uncommon enough that a sighting is worth logging.

Torrey Pine

Most-observed plants in Channel Islands

Giant Coreopsis
Leptosyne gigantea
1,662 observations · iNaturalist
Lemonade Berry
Rhus integrifolia
987 observations · iNaturalist
Santa Cruz Island Wild Buckwheat
Eriogonum arborescens
961 observations · iNaturalist
Island Bush Monkeyflower
Diplacus parviflorus
785 observations · iNaturalist
Blue Dicks
Dipterostemon capitatus
752 observations · iNaturalist
Coast Morning Glory
Calystegia macrostegia
563 observations · iNaturalist
Island Hazardia
Hazardia detonsa
542 observations · iNaturalist
California Poppy
Eschscholzia californica
534 observations
Toyon
Heteromeles arbutifolia
527 observations · iNaturalist
Island Paintbrush
Castilleja hololeuca
495 observations · iNaturalist
California Sagebrush
Artemisia californica
491 observations
Coyote Brush
Baccharis pilularis
484 observations · iNaturalist
Redflower Buckwheat
Eriogonum grande
462 observations · iNaturalist
Cliff Aster
Malacothrix saxatilis
450 observations · iNaturalist
Cardinal Catchfly
Silene laciniata
419 observations · iNaturalist
Greene's Dudleya
Dudleya greenei
418 observations · iNaturalist
Coast Paintbrush
Castilleja affinis
400 observations · iNaturalist
San Miguel Island Milkvetch
Astragalus miguelensis
373 observations · iNaturalist
Island Ceanothus
Ceanothus arboreus
368 observations · iNaturalist
Crystalline Ice Plant
Mesembryanthemum crystallinum
363 observations · iNaturalist
Common Yarrow
Achillea millefolium
341 observations
Purple Salsify
Tragopogon porrifolius
329 observations · iNaturalist
Sacred Datura
Datura wrightii
321 observations
White Horehound
Marrubium vulgare
314 observations · iNaturalist
Island Scrub Oak
Quercus pacifica
311 observations · iNaturalist
Laurel Sumac
Malosma laurina
301 observations · iNaturalist
Fennel
Foeniculum vulgare
298 observations · iNaturalist
Catalina Mariposa Lily
Calochortus catalinae
292 observations · iNaturalist
Southern Bush Monkeyflower
Diplacus longiflorus
281 observations · iNaturalist
Torrey Pine
Pinus torreyana
278 observations
California Brittlebush
Encelia californica
276 observations · iNaturalist
Western Blue-eyed Grass
Sisyrinchium bellum
269 observations · iNaturalist
Island Broom
Acmispon dendroideus
263 observations · iNaturalist
Chamise
Adenostoma fasciculatum
259 observations · iNaturalist
Coastal Wild Buckwheat
Eriogonum cinereum
250 observations · iNaturalist
Coast Live Oak
Quercus agrifolia
248 observations
Seaside Daisy
Erigeron glaucus
248 observations · iNaturalist
European Searocket
Cakile maritima
240 observations · iNaturalist
Coastal Goldenbush
Isocoma menziesii
238 observations · iNaturalist
White Globe Lily
Calochortus albus
231 observations · iNaturalist
Island Oak
Quercus tomentella
230 observations · iNaturalist
Ironwood
Lyonothamnus floribundus
228 observations · iNaturalist
Narrowleaf Milkweed
Asclepias fascicularis
227 observations · iNaturalist
Southern Coastal Bushmallow
Malacothamnus fasciculatus
226 observations · iNaturalist
Cobwebby Thistle
Cirsium occidentale
220 observations · iNaturalist
California Fuchsia
Epilobium canum
213 observations · iNaturalist
Chaparral Yucca
Hesperoyucca whipplei
212 observations · iNaturalist
Island Mallow
Malva assurgentiflora
208 observations · iNaturalist
Silver Bush Lupine
Lupinus albifrons
198 observations · iNaturalist
Pink Sand Verbena
Abronia umbellata
198 observations · iNaturalist

Built from recent research-grade iNaturalist observations. Identifications are community-sourced and may occasionally be wrong, and the ranking reflects where people record and photograph wildlife, so a species seen often here is not necessarily rare elsewhere. Some plants and animals are only out in certain seasons. Treat this as a lively snapshot of what people are finding, not a formal checklist.

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