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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 September 26, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on September 26, 2016.


Iliamna rivularis
click for enlargement
© 2009 Barry Breckling
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
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. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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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.