Explore / Bloom time / Spring
Bloom time
Spring
Species blooming in early, mid, or late spring.
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- 1,230
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- bloom_period=Early Spring,Mid Spring,Late Spring,Spring
Showing 751–800 of 1,230.
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Oenothera caespitosa Nutt. OECA10tufted evening primrose · Onagraceae -
Oenothera flava (A. Nelson) Garrett OEFLyellow evening primrose · Onagraceae -
Oenothera pallida Lindl. OEPApale evening primrose · Onagraceae -
Oenothera pilosella Raf. OEPI2meadow evening primrose · Onagraceae -
Olneya tesota A. Gray OLTEdesert ironwood · Fabaceae -
Olsynium douglasii (A. Dietr.) E.P. Bicknell var. douglasii OLDODDouglas' grasswidow · Iridaceae -
Onobrychis viciifolia Scop. ONVIsainfoin · Fabaceae -
Opuntia polyacantha Haw. OPPOplains pricklypear · Cactaceae -
Orthocarpus tenuifolius (Pursh) Benth. ORTE2thinleaved owl's-clover · Scrophulariaceae -
Osmorhiza depauperata Phil. OSDEbluntseed sweetroot · Apiaceae -
Osmorhiza occidentalis (Nutt. ex Torr. & A. Gray) Torr. OSOCwestern sweetroot · Apiaceae -
Osmunda cinnamomea L. OSCIcinnamon fern · Osmundaceae -
Osmunda regalis L. var. spectabilis (Willd.) A. Gray OSRESroyal fern · Osmundaceae -
Osteomeles anthyllidifolia (Sm.) Lindl. OSANHawai'i hawthorn · Rosaceae -
Ostrya virginiana (Mill.) K. Koch OSVIhophornbeam · Betulaceae -
Oxytropis lambertii Pursh OXLA3purple locoweed · Fabaceae -
Packera aurea (L.) Á. Löve & D. Löve PAAU3golden ragwort · Asteraceae -
Packera cana (Hook.) W.A. Weber & Á. Löve PACA15woolly groundsel · Asteraceae -
Packera glabella (Poir.) C. Jeffrey PAGL17butterweed · Asteraceae -
Paeonia brownii Douglas ex Hook. PABRBrown's peony · Paeoniaceae -
Panicum coloratum L. PACO2kleingrass · Poaceae -
Parthenocissus quinquefolia (L.) Planch. PAQU2Virginia creeper · Vitaceae -
Paspalum denticulatum Trin. PADE24longtom · Poaceae -
Paspalum dilatatum Poir. PADI3dallisgrass · Poaceae -
Paulownia tomentosa (Thunb.) Siebold & Zucc. ex Steud. PATO2princesstree · Scrophulariaceae -
Pectis angustifolia Torr. PEANlemonscent · Asteraceae -
Pedicularis canadensis L. PECACanadian lousewort · Scrophulariaceae -
Pedicularis groenlandica Retz. PEGR2elephanthead lousewort · Scrophulariaceae -
Peltandra virginica (L.) Schott PEVIgreen arrow arum · Araceae -
Penstemon acuminatus Douglas ex Lindl. PEACsharpleaf penstemon · Scrophulariaceae -
Penstemon angustifolius Nutt. ex Pursh PEAN4broadbeard beardtongue · Scrophulariaceae -
Penstemon cyananthus Hook. PECY2Wasatch beardtongue · Scrophulariaceae -
Penstemon deustus Douglas ex Lindl. PEDE4scabland penstemon · Scrophulariaceae -
Penstemon digitalis Nutt. ex Sims PEDIfoxglove beardtongue · Scrophulariaceae -
Penstemon fruticosus (Pursh) Greene PEFR3bush penstemon · Scrophulariaceae -
Penstemon gairdneri Hook. PEGAGairdner's beardtongue · Scrophulariaceae -
Penstemon glaber Pursh PEGL3sawsepal penstemon · Scrophulariaceae -
Penstemon heterophyllus Lindl. ssp. purdyi D.D. Keck PEHEPPurdy's penstemon · Scrophulariaceae -
Penstemon laetus A. Gray PELA7mountain blue penstemon · Scrophulariaceae -
Penstemon lyallii (A. Gray) A. Gray PELY2Lyall's beardtongue · Scrophulariaceae -
Penstemon newberryi A. Gray PENE3mountain pride · Scrophulariaceae -
Penstemon strictus Benth. PEST2Rocky Mountain penstemon · Scrophulariaceae -
Penstemon wilcoxii Rydb. PEWIWilcox's penstemon · Scrophulariaceae -
Penthorum sedoides L. PESE6ditch stonecrop · Crassulaceae -
Perideridia gairdneri (Hook. & Arn.) Mathias PEGA3Gardner's yampah · Apiaceae -
Persea borbonia (L.) Spreng. PEBOredbay · Lauraceae -
Persea palustris (Raf.) Sarg. PEPA37swamp bay · Lauraceae -
Petasites frigidus (L.) Fr. var. sagittatus (Banks ex Pursh) Cherniawsky PEFRS5arrowleaf sweet coltsfoot · Asteraceae -
Phacelia hastata Douglas ex Lehm. PHHAsilverleaf phacelia · Hydrophyllaceae -
Phacelia tanacetifolia Benth. PHTAlacy phacelia · Hydrophyllaceae