{{Short description|Succulent plant from Mexican islands in the Pacific}} {{Speciesbox | image = {{Photomontage | photo1a = Dudleya candida in cultivated.jpg | photo2a = Dudleya candida flowers.jpg | text = Rosettes (top) and flowers (bottom) | size = 220 | spacing = 1 | position = centre | border = 0 | color = white }} | taxon = Dudleya candida | authority = Britton & Rose | range_map = Coronado Islands Map.jpg | range_map_caption = Map of the Coronado Islands, where ''D. candida'' is endemic. | synonyms = {{collapsible list|bullets = true |title=<small>Synonymy</small> |''Cotyledon bryceae'' <small>(Britton & Rose) Fedde</small> |''Cotyledon candida'' <small>(Britton & Rose) Fedde</small> |''Dudleya bryceae'' <small>Britton & Rose</small> |''Echeveria bryceae'' <small>(Britton & Rose) A.Berger</small> |''Echeveria candida'' <small>(Britton & Rose) A.Berger</small> }} | synonyms_ref = <ref name="POWO">{{Cite POWO|id=85563-2|title=Dudleya candida|access-date=1 February 2022}}</ref> }}
'''''Dudleya candida''''' is a species of perennial succulent plant in the family Crassulaceae known by the common names '''Coronados liveforever'''<ref name=":2" /> or '''chalk rose'''.<ref>{{Cite web |title=PlantFiles: Dudleya Species, Chalk Rose |url=https://davesgarden.com/guides/pf/go/183868 |access-date=20 March 2022 |website=Dave's Garden |language=en}}</ref><ref>{{Cite web |title=Plant database entry for Chalk Rose (Dudleya candida) |url=https://garden.org/plants/view/392168/Chalk-Rose-Dudleya-candida/ |access-date=20 March 2022 |website=garden.org |publisher=National Gardening Association |language=en}}</ref> It is a rosette-forming, green to white-colored leaf succulent, and in bloom yellow flowers atop red stalks stand above the foliage. It has some visual similarities to the mainland ''Dudleya brittonii'', and has found uses in horticulture as an ornamental plant. It is restricted to the Coronado Islands, an island group off of the extreme northern Baja California coast, visible from the United States.<ref name=":2">{{Cite journal|last1=Rebman|first1=J. P.|last2=Gibson|first2=J.|last3=Rich|first3=K.|date=2016|title=Annotated checklist of the vascular plants of Baja California, Mexico|url=http://sdplantatlas.org/pdffiles/BajaChecklist2016.pdf|journal=San Diego Society of Natural History|volume=45|pages=132}}</ref><ref>Britton ex Britton & Rose. In: Bull. N. York Bot. Gard. 3: 18. (1903)</ref>
== Description == left|thumb|Growing with ''Opuntia'' species in habitat Beginning from the bottom, the caudex is 2.5 cm (1 in) to 5 cm (2 in) thick, and quickly branches into rounded mounds over (2 ft) in diameter, containing sometimes over 200 rosettes that are 7.6 cm (3 in) to 17 cm (7 in) in diameter. The foliage consists of 30 to 60 white, pulverulent leaves, that may have pink or reddish tips. The leaves are often widest at the base, 5 cm (2 in) to 10 cm (4 in) long, 1.2 cm (0.5 in) to 2.5 cm (1 in) wide, 3 mm (0.12 in) to 4.5 mm (0.18 in) thick.<ref name=":0">{{Cite book|last=Thomson|first=Paul H.|title=Dudleya and Hasseanthus Handbook|year=1993|isbn=978-0960206650|location=Bonsall, California|pages=61–62}}</ref>
The peduncle is pink, 20 cm (8 in) to 45 cm (18 in) tall, 6 mm (0.25 in) to 9.3 mm (0.37 in) thick, with 12 to 20 horizontal bracts. The bracts are 3 cm (1.25 in) long, 1.9 cm (0.75 in) wide, and 3 mm (0.12 in) thick, tapering to a sharp point. The inflorescence branches several times, but stays fairly compact. The upright flowers are a pale yellow, 1.5 cm (0.62 in) long, and up to 6 mm (0.25 in) wide, suspended on 6 mm (0.25 in) to 1.2 cm (0.5 in) long pedicels.<ref name=":0" />
''Dudleya candida'' flowers from May to early June.<ref name=":0" />
The plant bears a resemblance to another nearby relative, ''Dudleya brittonii''. The plants may be distinguished by the fact that ''D. candida'' has a much smaller rosette and smaller flower heads, and also that ''brittonii'' has flowering branchlets emerging from the axils of the upper bracts.<ref name=":0" />
== Distribution and habitat == left|thumb|Many plants growing in habitat ''Dudleya candida'' is only found the Coronado Islands, an island group off of the northwestern corner of Baja California. It occurs on North and South Island.<ref name=":2" /><ref name=":0" />
== Cultivation == In cultivation, ''Dudleya candida'' will grow quickly and multiply over many years. Specimens will likely overgrow their pots, but can last many years. It may or may not be watered during summer dormancy, surviving regardless. Overhead watering will remove the white farina on the leaves, making it green.<ref name=":0" /> Plants will also need regular water during the winter months, which is their growing period. As this species is native to the maritime Coronado Islands, they are not very tolerant of excessive heat or cold.<ref>{{Cite web|last=Faucon|first=Philippe|title=Dudleya candida|url=https://www.desert-tropicals.com/Plants/Crassulaceae/Dudleya_candida.html|access-date=1 February 2022|website=www.desert-tropicals.com|publisher=Desert-Tropicals}}</ref>
A narrow-leaved horticultural form exists, and is often encountered much more frequently than the normal form in the horticultural trade. The normal form is often mislabeled and rare to find.<ref name=":0" />
== References == {{Reflist}}
{{Taxonbar|from=Q15481957}}
candida Category:Flora of Baja California Category:Taxa named by Nathaniel Lord Britton Category:Taxa named by Joseph Nelson Rose Category:Natural history of the California chaparral and woodlands
{{Crassulaceae-stub}}