Common Name: BUTTERCUP FAMILY Habit: Annual, perennial herb, woody vine [shrub], occasionally aquatic. Leaf: generally basal and cauline, alternate or opposite, simple or compound; petioles at base generally flat, occasionally sheathing or stipule-like. Inflorescence: cyme, raceme, panicle, or flowers 1. Flower: generally bisexual, generally radial; sepals 3--6(20), free, early-deciduous or withering in fruit, generally green; petals 0--many, generally free; stamens generally 5--many, staminodes generally 0; pistils 1--many, ovary superior, chamber 1, style 0--1, generally +- persistent as beak, ovules 1--many. Fruit: achene, follicle, berry, +- utricle in Trautvetteria, in aggregate or not, 1--many-seeded. Genera In Family: +- 60 genera, 1700 species: worldwide, especially northern temperate, tropical mountains; many ornamental (Adonis, Aquilegia, Clematis, Consolida, Delphinium, Helleborus, Nigella). Toxicity: some highly TOXIC (Aconitum, Actaea, Delphinium, Ranunculus). Note: Taxa of Isopyrum in TJM (1993) moved to Enemion; Kumlienia moved to Ranunculus. eFlora Treatment Author: Margriet Wetherwax & Dieter H. Wilken, family description, key to genera Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Common Name: MOUSETAIL Habit: Annual, short-lived, generally tufted. Leaf: basal, simple, linear. Inflorescence: scapose, 1-flowered. Flower: sepals (3)5(8), 1.5--4 mm, alike, free, green or scarious-margined, spurred; petals 0--5, free, linear to narrowly spoon-shaped, long-clawed, white; stamens 5--25; pistils 10--400, 1--2.5 mm, ovules 1, styles thread-like. Fruit: achene, angled, wall not veined, styles persistent, +- enlarged in fruit; receptacle elongate, generally growing and producing ovules after flower. Etymology: (Greek: mus, mouse, and oura, tail) eFlora Treatment Author: Alan T. Whittemore Reference: Whittemore 1997 FNANM 3:135--138
Myosurus sessilis S. Watson
NATIVE Habit: Plant 0.8--2.5 cm. Inflorescence: scape 0--0.2 cm. Flower: sepals +- 3-nerved, scarious margin wide. Fruit: outer face 1.2--2 mm, 0.4--0.8 mm wide, narrowly rhomboid, occasionally narrowly oblong, not bordered; beak 0.8--1.8 mm, diverging from fruit surface; aggregate 8--25 mm, 2--4 mm wide, included in leaves. Ecology: Vernal pools, alkali flats; Elevation: 3--1600 m. Bioregional Distribution: GV; Distribution Outside California: Oregon. Flowering Time: Mar--May Synonyms: Myosurus minimus L. var. sessiliflorus (Huth) G.R. Campb. Jepson eFlora Author: Alan T. Whittemore Reference: Whittemore 1997 FNANM 3:135--138 Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Myosurus minimus Next taxon: Ranunculus
Botanical illustration including Myosurus sessilis
Citation for this treatment: Alan T. Whittemore 2012, Myosurus sessilis, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=34226, accessed on December 02, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on December 02, 2024.
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(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 occurrence).
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Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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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 (fruiting time in some monocot genera).
