|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Hydrangeaceae||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Shrub < 3 m. Stem: bark red-brown, aging gray, peeling as narrow rectangles or strips; twigs glabrous to hairy. Leaf: deciduous, petioled; blade 3-veined from base, +- glabrous to hairy, margin entire to toothed. Inflorescence: flower 1, or raceme to panicle, terminal, +- open. Flower: fragrant; sepals 4--5, glabrous to hairy; petals 4--5, white; stamens generally many, clustered, filaments linear, fused at base; ovary 1/2 to completely inferior, chambers 4--5, placentas axile, ovules many, style 1, branches generally 4, stigmas linear along style branches. Fruit: becoming woody, generally loculicidal. Seed: many, generally fusiform, generally brown.
Species In Genus: +- 65 species: temperate America, Eurasia. Etymology: (Greek: for Ptolemy Philadelphus, Greek king of Egypt, 309--247 BC) Note: Many intergrading infraspecific taxa described; more study needed to determine which warrant recognition.
eFlora Treatment Author: Robert E. Preston & Charles F. Quibell
Jepson Online Interchange
Key to PhiladelphusPrevious taxon: Jamesia americana var. rosea
Next taxon: Philadelphus lewisii
Citation for this treatment: Robert E. Preston & Charles F. Quibell 2017. Philadelphus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=9631, accessed on March 24, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on March 24, 2017.