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Iliamna rivularis
STREAMBANK WILD HOLLYHOCK

Higher Taxonomy
Family: MalvaceaeView DescriptionDichotomous Key

Common Name: MALLOW FAMILY
Habit: Annual to tree; generally with stellate hairs, often with bristles or peltate scales; juice generally mucilage-like; bark fibrous. Leaf: generally cauline, alternate, petioled, simple [palmate-compound], generally palmate-lobed and/or veined, generally toothed, evergreen or not; stipules persistent or not. Inflorescence: head, spike, raceme, or panicle, in panicle or not (a compound panicle), or flowers >= 1 in leaf axils, or flowers generally 1 opposite a leaf or on a spur; bracts leaf-like or not; bractlets 0 or on flowering stalks, often closely subtending calyx, generally in involucel. Flower: generally bisexual, radial; sepals 5, generally fused at base, abutting in bud, larger in fruit or not, nectaries as tufts of glandular hairs at base; petals (0)5, free from each other but generally fused at base to, falling with filament tube, clawed or not; stamens 5--many, filaments fused for most of length into tube around style, staminodes 5, alternate stamens, or generally 0; pistil 1, ovary superior, stalked or generally not, chambers generally >= 5, styles or style branches, stigmas generally 1 or 1--2 × chamber number. Fruit: loculicidal capsule, [berry], or 5--many, disk- or wedge-shaped segments (= mericarps).
Genera In Family: 266 genera, 4025 species: worldwide, especially warm regions; some cultivated (e.g., Abelmoschus okra; Alcea hollyhock; Gossypium cotton; Hibiscus hibiscus). Note: Recently treated to include Bombacaceae, Sterculiaceae, Tiliaceae. Mature fruit needed for identification; "outer edges" are surfaces between sides and back (abaxial surface) of segment. "Flower stalk" used instead of "pedicel," "peduncle," especially where both needed (i.e., when flowers both 1 in leaf axils and otherwise).
eFlora Treatment Author: Steven R. Hill, except as noted
Scientific Editor: Steven R. Hill, Thomas J. Rosatti.
Genus: IliamnaView DescriptionDichotomous Key

Common Name: GLOBE MALLOW
Habit: Perennial herb [subshrub], stellate-hairy; caudex woody. Stem: generally > 1, 0.6--2 m, branched. Leaf: stipules inconspicuous, persistent or not; blade generally 3--7 lobed, base wedge-shaped, truncate, or cordate. Inflorescence: spike- or raceme-like, flowers 1 in lower leaf axils, 2--5 in upper leaf axils, leaves reduced above; bractlets 3, free, linear to lanceolate, +- persistent. Flower: showy; calyx 5-lobed, divided 1/2, stellate-hairy to +- glabrous; petals 5, pale lavender to rose-purple, pink, or white; filament tube with anthers in upper 1/3--1/2; styles generally 6--15, stigmas generally oblique-squared, often +- elongate. Fruit: generally > calyx; oblong; segments generally 6--15, generally 10--15 mm, 6--10 mm wide, beaked or not, attached to fruit axis by strong fiber, +- dehiscent to base, bristly, sides thin, smooth, glabrous. Seed: generally 2--4 per segment, reniform, glabrous to puberulent.
Species In Genus: 8 species: North America. Etymology: (coined by E.L. Greene, derivation uncertain, perhaps Greek, meaning Trojan; or named after Lake Iliamna in Alaska; or after Illi-nois and Indi-ana, where 1 sp. is endemic)
eFlora Treatment Author: Tracey Slotta

Iliamna rivularis (Hook.) Greene
NATIVE
Habit: Plant 0.5--2 m. Leaf: petiole 2--7(10) cm; blade 5--14 cm, 5--16 cm wide, 3--7-lobed, coarsely serrate, sparsely hairy, base cordate to reniform. Inflorescence: bractlets generally 4.5--6 mm; flowering stalks 3--10(15) mm. Flower: sepals 6--11 mm, +- coarsely hairy; corolla 3--8 cm wide, rose-purple to light pink to white. Fruit: generally <= 10 mm. Seed: 1--3(4) per segment. Chromosomes: 2n=66.
Ecology: Mtn streamsides; Elevation: 500--2000 m. Bioregional Distribution: NCo (Humboldt Co.); Distribution Outside California: to British Columbia, Wyoming, Montana, Colorado. Flowering Time: Jun--Aug Note: Inclusion in flora in error; occurrence in California based on misidentification.
Unabridged Note: Probably extirpated in California (1 collection, 1938, at Missouri, from Willow Creek Canyon, Humboldt Co.).
eFlora Treatment Author: Tracey Slotta
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Citation for this treatment: Tracey Slotta 2016. Iliamna rivularis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=28939, accessed on May 03, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 03, 2016.


Iliamna rivularis var. rivularis
click for enlargement
© 2012 Gary A. Monroe
Iliamna rivularis var. rivularis
click for enlargement
© 2012 Gary A. Monroe
Iliamna rivularis var. rivularis
click for enlargement
© 2012 Gary A. Monroe
Iliamna rivularis
click for enlargement
© 2009 Barry Breckling
Iliamna rivularis var. rivularis
click for enlargement
© 2012 Gary A. Monroe
Iliamna rivularis
click for enlargement
© 2009 Barry Breckling

More photos of Iliamna rivularis in CalPhotos


Geographic subdivisions for Iliamna rivularis:
NCo (Humboldt Co.);
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.