Explore / Range and rarity / Single-county taxa
Range and rarity
Single-county taxa
Taxa documented in only a single county across the entire catalogue. Mostly local endemics, sub-rank curiosities, and rarely-collected outliers — the eccentric edge of the flora.
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Showing 2,501–2,550 of 3,373.
- Pinus ×hunnewellii Alb.G. Johnson [parviflora × strobus] PIHU3Hunnewell pine · Pinaceae
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Piperia elegans (Lindl.) Rydb. ssp. decurtata R. Morgan & Glicenstein PIELD2elegant piperia · Orchidaceae -
Piperia yadonii R. Morgan & Ackerman PIYAYadon's piperia · Orchidaceae - Piptatheropsis shoshoneana (Curto & Douglass M. Hend.) Romasch., P.M. Peterson & R.J. Soreng PISH2Shoshone ricegrass · Poaceae
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Piptochaetium fuscum (Steud.) Barkworh, Ciald. & Gandhi PIFU2bristly speargrass · Poaceae -
Piptochaetium stipoides (Trin. & Rupr.) Hack. ex Arechav. PIST7purple speargrass · Poaceae -
Pipturus forbesii Krajina PIFO2Forbes' pipturus · Urticaceae -
Pipturus kauaiensis A. Heller PIKAKauai pipturus · Urticaceae -
Pipturus ruber A. Heller PIRU2red pipturus · Urticaceae -
Pisonia capitata (S. Watson) Standl. PICA14Mexican devil's-claws · Nyctaginaceae - Pisonia floridana Britton ex Small PIFL6Rock Key devil's-claws · Nyctaginaceae
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Pisonia rotundata Griseb. PIRO3smooth devil's-claws · Nyctaginaceae -
Pisonia wagneriana Fosberg PIWA2Kauai catchbirdtree · Nyctaginaceae -
Pistacia mexicana Kunth PIME4American pistachio · Anacardiaceae - Pithecellobium bahamense Northr. PIBA5blackbead · Fabaceae
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Pithecoctenium crucigerum (L.) A.H. Gentry PICR3monkey's-comb · Bignoniaceae -
Pittosporum flocculosum (Hillebr.) Sherff PIFL4Waianae Range cheesewood · Pittosporaceae -
Pittosporum gayanum Rock PIGA2Waialeale cheesewood · Pittosporaceae - Pittosporum hawaiiense Hillebr. PIHA4Hawai'i cheesewood · Pittosporaceae
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Pittosporum hosmeri Rock PIHOKona cheesewood · Pittosporaceae -
Pittosporum kauaiense Hillebr. PIKA3Kauai cheesewood · Pittosporaceae -
Pittosporum napaliense Sherff PINAroyal cheesewood · Pittosporaceae -
Pittosporum pentandrum (Blanco) Merr. PIPE8Taiwanese cheesewood · Pittosporaceae -
Pittosporum tenuifolium Gaertn. PITE11tawhiwhi · Pittosporaceae -
Plagiobothrys bracteatus (Howell) I.M. Johnst. var. aculeolatus (Piper) I.M. Johnst. PLBRAbracted popcornflower · Boraginaceae -
Plagiobothrys canescens Benth. var. catalinensis (A. Gray) Jeps. PLCAC4Catalina popcornflower · Boraginaceae -
Plagiobothrys collinus (Phil.) I.M. Johnst. var. gracilis (I.M. Johnst.) L.C. Higgins PLCOGCooper's popcornflower · Boraginaceae -
Plagiobothrys glyptocarpus (Piper) I.M. Johnst. var. modestus I.M. Johnst. PLGLMsculptured popcornflower · Boraginaceae -
Plagiobothrys hirtus (Greene) I.M. Johnst. PLHI6rough popcornflower · Boraginaceae -
Plagiobothrys hystriculus (Piper) I.M. Johnst. PLHYbearded popcornflower · Boraginaceae -
Plagiobothrys lamprocarpus (Piper) I.M. Johnst. PLLA3shinyfruit popcornflower · Boraginaceae -
Plagiobothrys mollis (A. Gray) I.M. Johnst. var. vestitus (Greene) I.M. Johnst. PLMOVsoft popcornflower · Boraginaceae -
Plagiobothrys strictus (Greene) I.M. Johnst. PLST2Calistoga popcornflower · Boraginaceae -
Plagiobothrys tener (Greene) I.M. Johnst. var. subglaber I.M. Johnst. PLTESslender popcornflower · Boraginaceae -
Plagiobothrys torreyi (A. Gray) A. Gray var. torreyi PLTOTTorrey's popcornflower · Boraginaceae -
Plantago afra L. PLAFglandular plantain · Plantaginaceae -
Plantago debilis R. Br. PLDEweak plantain · Plantaginaceae -
Plantago hawaiensis (A. Gray) Pilg. PLHA2Hawai'i plantain · Plantaginaceae -
Plantago princeps Cham. & Schltdl. var. princeps PLPRPale · Plantaginaceae -
Platanthera aquilonis × purpurascens [unnamed hybrid] PLAQ4Orchidaceae -
Platanthera aquilonis × tescamnis [unnamed hybrid] PLAQ3Orchidaceae -
Platanthera dilatata var. leucostachys × y [unnamed hybrid] PLDI4Orchidaceae -
Platanthera grandiflora × psycodes [unnamed hybrid] PLGR12Orchidaceae -
Platanthera sparsiflora × tescamnis [unnamed hybrid] PLSP8Orchidaceae -
Platanthera tipuloides (L.) Lindl. PLTIAleutian bog orchid · Orchidaceae -
Platanthera tipuloides (L.) Lindl. var. behringiana (Rydb.) Hultén PLTIBAleutian bog orchid · Orchidaceae -
Platanthera yosemitensis Colwell, Sheviak & P.E. Moore PLYO2Yosemite bog orchid · Orchidaceae - Platanthera ×apalachicola P.M. Br. & S.L. Stewart [chapmanii × cristata] PLAP3fringed orchid · Orchidaceae
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Plateilema palmeri (A. Gray) Cockerell PLPA9plateilema · Asteraceae -
Platydesma cornuta Hillebr. PLCO6Oahu pilo kea · Rutaceae