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Plants of Custer State Park

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

2,113
recent observations
50
species listed
50
plants

Naturalists have logged 2,113 research-grade observations across the 50 most-recorded species in Custer. The most frequently seen is the Rocky Mountains Ponderosa Pine, with 129 recorded sightings.

Most-observed plants in Custer

Rocky Mountains Ponderosa Pine
Pinus scopulorum
129 observations · iNaturalist
Bur Oak
Quercus macrocarpa
111 observations
Great Mullein
Verbascum thapsus
99 observations
Golden Bean
Thermopsis rhombifolia
77 observations
Black-eyed Susan
Rudbeckia hirta
68 observations
Hound's-tongue
Cynoglossum officinale
65 observations · iNaturalist
Woodland Pinedrops
Pterospora andromedea
65 observations · iNaturalist
Large-flowered Beardtongue
Penstemon grandiflorus
64 observations
Wild Bergamot
Monarda fistulosa
63 observations
Western Harebell
Campanula petiolata
63 observations · iNaturalist
Red Raspberry
Rubus idaeus
61 observations
Hoary Vervain
Verbena stricta
61 observations
Leadplant
Amorpha canescens
59 observations
Fireweed
Chamaenerion angustifolium
55 observations · iNaturalist
Bearberry
Arctostaphylos uva-ursi
53 observations
Western Blue Flag
Iris missouriensis
50 observations · iNaturalist
Lanceleaf Stonecrop
Sedum lanceolatum
49 observations · iNaturalist
Upright Prairie Coneflower
Ratibida columnifera
48 observations
Showy Milkweed
Asclepias speciosa
47 observations
Common Yarrow
Achillea millefolium
43 observations
Common Juniper
Juniperus communis
43 observations
Wild Licorice
Glycyrrhiza lepidota
40 observations · iNaturalist
Common Toadflax
Linaria vulgaris
39 observations
Hairy False Goldenaster
Heterotheca villosa
38 observations · iNaturalist
Richardson's Geranium
Geranium richardsonii
36 observations · iNaturalist
Western Poison Ivy
Toxicodendron rydbergii
31 observations · iNaturalist
Dark-throated Shooting Star
Primula pauciflora
31 observations · iNaturalist
Quaking Aspen
Populus tremuloides
29 observations
Spreading Dogbane
Apocynum androsaemifolium
28 observations
Red Clover
Trifolium pratense
28 observations
Wood Lily
Lilium philadelphicum
28 observations
Sensitive Fern
Onoclea sensibilis
28 observations
Narrow-leaved Purple Coneflower
Echinacea angustifolia
26 observations
Chokecherry
Prunus virginiana
25 observations
Creeping Thistle
Cirsium arvense
25 observations
Spotted Joe-Pye Weed
Eutrochium maculatum
24 observations
American Vetch
Vicia americana
23 observations
Lilac Penstemon
Penstemon gracilis
23 observations · iNaturalist
Field Penny-cress
Thlaspi arvense
22 observations · iNaturalist
Fringed Sagebrush
Artemisia frigida
22 observations · iNaturalist
Rocky Mountain Woodsia
Woodsia scopulina
21 observations · iNaturalist
Wild Sarsaparilla
Aralia nudicaulis
21 observations
Bull Thistle
Cirsium vulgare
20 observations
Great Plains Yucca
Yucca glauca
20 observations
Laxmann's Milkvetch
Astragalus laxmannii
20 observations · iNaturalist
Star-flowered Lily-of-the-valley
Maianthemum stellatum
19 observations
Brittle Pricklypear
Opuntia fragilis
19 observations · iNaturalist
Curlycup Gumweed
Grindelia squarrosa
19 observations
Yellow Salsify
Tragopogon dubius
18 observations · iNaturalist
Common Cowparsnip
Heracleum maximum
17 observations

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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