Plants — 23,046 Species

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Castilleja miniata Douglas
Orobanchaceae

Castilleja miniata Douglas

Castilleja miniata Douglas

Castilleja miniata, or giant red paintbrush, is a parasitic perennial herb native to wet North American mountain habitats.

Castilleja minor (A.Gray) A.Gray
Orobanchaceae

Castilleja minor (A.Gray) A.Gray

Castilleja minor (A.Gray) A.Gray

Castilleja minor (thread-torch paintbrush) is an annual herb with variable leaves and narrow, threadlike flowers.

Castilleja nana Eastw.
Orobanchaceae

Castilleja nana Eastw.

Castilleja nana Eastw.

Castilleja nana, the dwarf alpine Indian paintbrush, is a small perennial herb native to alpine areas of the western United States.

Castilleja occidentalis Torr.
Orobanchaceae

Castilleja occidentalis Torr.

Castilleja occidentalis Torr.

Castilleja occidentalis, commonly western paintbrush, is a hemiparasitic paintbrush species native to western North America.

Castilleja pallida (L.) Kunth
Orobanchaceae

Castilleja pallida (L.) Kunth

Castilleja pallida (L.) Kunth

Castilleja pallida, pale Indian paintbrush, is a facultative parasitic herb native to parts of northern North America and northern Eurasia.

Castilleja parviflora Bong.
Orobanchaceae

Castilleja parviflora Bong.

Castilleja parviflora Bong.

Castilleja parviflora Bong. is a perennial hairy wildflower that grows in subalpine and alpine open habitats with colored bracts and tubular flowers.

Castilleja pruinosa Fernald
Orobanchaceae

Castilleja pruinosa Fernald

Castilleja pruinosa Fernald

Castilleja pruinosa is a bushy perennial herb with colored bracts and greenish reddish-margined flowers, growing up to 80 cm tall.

Castilleja purpurea (Nutt.) G.Don
Orobanchaceae

Castilleja purpurea (Nutt.) G.Don

Castilleja purpurea (Nutt.) G.Don

Downy Indian paintbrush (Castilleja purpurea) is a variable North American wildflower whose subspecies are debated as separate species.

Castilleja rhexifolia Rydb.
Orobanchaceae

Castilleja rhexifolia Rydb.

Castilleja rhexifolia Rydb.

Castilleja rhexifolia Rydb., alpine paintbrush, is a perennial hemiparasitic paintbrush native to western North American mountains.

Castilleja rubicundula (Jeps.) T.I.Chuang & Heckard
Orobanchaceae

Castilleja rubicundula (Jeps.) T.I.Chuang & Heckard

Castilleja rubicundula (Jeps.) T.I.Chuang & Heckard

Castilleja rubicundula is an annual hairy wildflower native to grasslands of northern California and southwestern Oregon with colorful inflated flowers.

Castilleja scabrida Eastw.
Orobanchaceae

Castilleja scabrida Eastw.

Castilleja scabrida Eastw.

Castilleja scabrida, or rough paintbrush, is a vivid perennial wildflower native to five western US states, with good potential as a garden plant.

Castilleja septentrionalis Lindl.
Orobanchaceae

Castilleja septentrionalis Lindl.

Castilleja septentrionalis Lindl.

Castilleja septentrionalis is a parasitic perennial herb with pale inflorescences, widespread in northern North America.

Castilleja sessiliflora Pursh
Orobanchaceae

Castilleja sessiliflora Pursh

Castilleja sessiliflora Pursh

Castilleja sessiliflora Pursh is a hemiparasitic perennial herb that is less dependent on hosts than other Castilleja, growing across several North American habitats.

Castilleja subinclusa Greene
Orobanchaceae

Castilleja subinclusa Greene

Castilleja subinclusa Greene

Castilleja subinclusa (long leaf paintbrush) is a perennial hairy paintbrush native to California and northern Baja California, with multiple recognized varieties.

Castilleja tenuis (A.Heller) T.I.Chuang & Heckard
Orobanchaceae

Castilleja tenuis (A.Heller) T.I.Chuang & Heckard

Castilleja tenuis (A.Heller) T.I.Chuang & Heckard

Castilleja tenuis is a hairy annual herb up to 45 cm tall with colored bracts and white to bright yellow pouched flowers.

Castilleja thompsonii Pennell
Orobanchaceae

Castilleja thompsonii Pennell

Castilleja thompsonii Pennell

Castilleja thompsonii is a hairy-stemmed herb with colored bracts, found in dry rocky open areas of British Columbia and Washington.

Castilleja wightii Elmer
Orobanchaceae

Castilleja wightii Elmer

Castilleja wightii Elmer

Castilleja wightii Elmer is a perennial herb native to coastal California, with bracts ranging in color from red to yellow.

Casuarina cunninghamiana Miq.
Casuarinaceae

Casuarina cunninghamiana Miq.

Casuarina cunninghamiana Miq.

Casuarina cunninghamiana is a dioecious riverbank tree native to Australia and New Guinea, used for riverbank stabilisation.

Casuarina equisetifolia L.
Casuarinaceae

Casuarina equisetifolia L.

Casuarina equisetifolia L.

Casuarina equisetifolia is a flowering tree native to Asia, Australia and the Pacific, studied for wastewater remediation use.

Casuarina glauca Sieber
Casuarinaceae

Casuarina glauca Sieber

Casuarina glauca Sieber

Casuarina glauca (swamp she-oak) is a dioecious Australian tree, invasive in Florida, with nitrogen-fixing symbiosis and cultivated uses.

Catabrosa aquatica (L.) P.Beauv.
Poaceae

Catabrosa aquatica (L.) P.Beauv.

Catabrosa aquatica (L.) P.Beauv.

Catabrosa aquatica is a widespread semi-aquatic grass native to non-tropical Northern Hemisphere and southern South America, growing in wet areas.

Catalpa bignonioides Walter
Bignoniaceae

Catalpa bignonioides Walter

Catalpa bignonioides Walter

Catalpa bignonioides (southern catalpa) is a deciduous ornamental North American tree with large leaves and showy white flowers.

Catalpa speciosa (Warder ex Barney) Warder ex Engelm.
Bignoniaceae

Catalpa speciosa (Warder ex Barney) Warder ex Engelm.

Catalpa speciosa (Warder ex Barney) Warder ex Engelm.

Catalpa speciosa, or northern catalpa, is a deciduous tree cultivated as an ornamental and for fishing bait caterpillars.

Catananche caerulea L.
Asteraceae

Catananche caerulea L.

Catananche caerulea L.

Catananche caerulea, or Cupid's dart, is a short-lived ornamental perennial native to western North Africa and southwestern Europe.

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