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Vascular Plants of California
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Sagittaria montevidensis subsp. calycina


Higher Taxonomy
Family: AlismataceaeView DescriptionDichotomous Key
Common Name: WATER-PLANTAIN FAMILY
Habit: Annual, perennial herb from caudices, corms, stolons, rhizomes, or tubers, aquatic (+- emergent or on mud); roots fibrous, septate or not; monoecious, dioecious, or flowers bisexual. Stem: caudex short. Leaf: basal, simple, palmately veined, floating or not; submersed generally linear to ovate; emergent linear to sagittate. Inflorescence: generally scapose, umbel-, raceme-, or panicle-like; flowers, branches whorled. Flower: radial; sepals 3, generally green, generally persistent; petals 3, generally > sepals, white or pink; stamens 6--many; pistils 6--many, free or +- fused at base. Fruit: achene, generally compressed, beaked.
Genera In Family: +- 12 genera, 75--100 species: especially tropics, subtropics.
eFlora Treatment Author: Charles E. Turner, Robert R. Haynes & C. Barre Hellquist
Scientific Editor: Thomas J. Rosatti.
Genus: SagittariaView DescriptionDichotomous Key


Common Name: ARROWHEAD
Habit: Annual, perennial herb; roots septate; generally monoecious; scape generally straight at inflorescence. Leaf: petiole cylindric to 3-angled; submersed blades tapered to base; floating or emergent blades generally sagittate (linear to ovate). Inflorescence: lowest node generally with 3 pistillate flowers, those above generally staminate. Flower: sepals 3--10 mm, reflexed to appressed in fruit; petals generally entire. Staminate Flower: stamens 7--30. Pistillate Flower: receptacle convex; pistils many, spiralled on convex receptacle. Fruit: body generally 2--3.5 mm, strongly compressed, abaxially winged or ridged; beak generally lateral, spreading to erect.
Species In Genus: +- 30 species: worldwide, especially America. Etymology: (Latin: arrow, from leaf shape) Note: Some species weedy; tubers of some eaten by humans, wildlife; Sagittaria brevirostra Mack. & Bush reportedly persisting at Stafford Lake and Chileno Laguna, Marin Co.
Unabridged Reference: Bogin 1955 Mem New York Bot Gard 9:179--233
Sagittaria montevidensis Cham. & Schltdl. subsp. calycina (Engelm.) Bogin
NATIVE
Habit: Annual. Leaf: petioles of emergent leaves erect to ascending, blades 5--15 cm, sagittate, basal lobes +- = terminal. Inflorescence: lowest node with 2 bisexual flowers. Staminate Flower: filaments papillate. Bisexual Flower: pedicel recurved in fruit, thickened; sepals appressed in fruit; petals white, generally with green-yellow spot at base. Fruit: side oil-streaked when fresh; beak spreading, 0.4--0.8 mm.
Ecology: Ponds, rice fields; Elevation: < 300 m. Bioregional Distribution: GV, SnFrB (Sonoma Co.), c SCo (Los Angeles Co.); Distribution Outside California: to eastern United States, northern Mexico. Flowering Time: Jul--Aug
Jepson eFlora Author: Charles E. Turner, Robert R. Haynes & C. Barre Hellquist
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Next taxon: Sagittaria rigida

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Botanical illustration including Sagittaria montevidensis subsp. calycina

botanical illustration including Sagittaria montevidensis subsp. calycina

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Citation for this treatment: Charles E. Turner, Robert R. Haynes & C. Barre Hellquist 2012, Sagittaria montevidensis subsp. calycina, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=52726, accessed on December 13, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on December 13, 2019.

Sagittaria montevidensis subsp. calycina
click for enlargement
© 2019 Neal Kramer
Sagittaria montevidensis subsp. calycina
click for enlargement
© 2019 Neal Kramer
Sagittaria montevidensis subsp. calycina
click for enlargement
© 2019 Neal Kramer
Sagittaria montevidensis subsp. calycina
click for enlargement
© 2019 Neal Kramer
Sagittaria montevidensis subsp. calycina
click for enlargement
© 2019 Neal Kramer
Sagittaria montevidensis subsp. calycina
click for enlargement
© 2019 Neal Kramer

More photos of Sagittaria montevidensis subsp. calycina in CalPhotos



Geographic subdivisions for Sagittaria montevidensis subsp. calycina:
GV, SnFrB (Sonoma Co.), c SCo (Los Angeles Co.)
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.