Common Name: SUNFLOWER FAMILY Habit: Annual to tree. Leaf: basal and/or cauline, alternate, opposite, rarely whorled, simple to 2+ × compound. Inflorescence: 1° inflorescence a head, resembling a flower, of several types (see below), 1--many in generally +- cyme-like cluster; each head generally with +- calyx-like involucre of 1--many series of phyllaries (involucre bracts); receptacle of head flat to conic or columnar, paleate (bearing paleae = receptacle bracts) or epaleate; flowers 1--many per head. Flower: bisexual, unisexual, or sterile, +- small, of several types (see below); calyx 0 or modified into +- persistent pappus of bristles, scales, and/or awns; corolla radial or bilateral (0), lobes generally (0)3--5; stamens 4--5, filaments generally free, generally fused to corolla at tube/throat junction, anthers generally fused into cylinder around style, anther base generally rounded or cordate (deeply sagittate or with tail-like appendages), tip (= flattened appendage) generally projecting beyond pollen sac; pistil 1, 2-carpeled, ovary inferior, 1-chambered, 1-seeded, placenta basal, style 1, tip generally +- 2-branched (except in some staminate disk flowers), branch tips truncate or generally bearing +- brush-like appendages; stigmas 2, generally on adaxial faces of style branches. Fruit: achene (also called a cypsela) (drupe in Chrysanthemoides), cylindric to ovoid, sometimes compressed, generally deciduous with pappus attached. Genera In Family: +- 1500 genera, 23000 species: worldwide, many habitats. Note: Flower and head types differ in form and sexual condition. A disk flower has a generally radial corolla, with a cylindric tube, expanded throat, and generally 5 lobes. Disk flowers are generally bisexual and fertile but occasionally staminate with reduced ovaries. Discoid heads comprise only disk flowers. A radiant head is a variant of a discoid head, with peripheral disk flower corollas expanded, often bilateral. A ray flower corolla is bilateral, generally with a slender tube and flattened petal-like ray (single lip composed of generally 3 lobes). Ray flowers are generally pistillate or sterile (occasionally lacking styles). Radiate heads have peripheral ray flowers and central disk flowers. Disciform heads superficially resemble discoid heads, with pistillate or sterile flowers that lack rays, together with or separate from disk flowers. A ligulate flower is bisexual, with a bilateral, generally ephemeral corolla and 5-lobed ligule. Liguliflorous heads comprise only ligulate flowers. See glossary p. 31 for illustrations of family characteristics. Echinops sphaerocephalus L., Gaillardia aristata Pursh, Gaillardia pulchella Foug., Hymenothrix loomisii S.F. Blake, Tagetes erecta L., Thelesperma megapotamicum (Spreng.) Kuntze are waifs. Melampodium perfoliatum Kunth, historic urban waif. Ageratum conyzoides L., Guizotia abyssinica (L. f.) Cass., Santolina chamaecyparisus L., orth. var. are rare or uncommon escapes from cultivation. Dyssodia papposa, Ismelia carinata (Schousb.) Sch. Bip. [Chrysanthemum carinatum Schousb.], Mantisalca salmantica (L.) Briq. & Cavill. are historical or extirpated waifs in California. Inula helenium L. not documented in California. Taxa of Aster in TJM (1993) treated here in Almutaster, Doellingeria, Eurybia, Ionactis, Oreostemma, Sericocarpus, Symphyotrichum; Chamomilla in Matricaria; Bahia in Hymenothrix; Cnicus in Centaurea; Conyza in Erigeron and Laennecia; Dugaldia in Hymenoxys; Erechtites in Senecio; Hymenoclea in Ambrosia; Lembertia in Monolopia; Osteospermum ecklonis in Dimorphotheca; Picris echioides in Helminthotheca; Prionopsis in Grindelia; Raillardiopsis in Anisocarpus and Carlquistia; Schkuhria multiflora in Picradeniopsis; Trimorpha in Erigeron; Venidium in Arctotis; Viguiera in Aldama and Bahiopsis; Whitneya in Arnica. Amauriopsis in TJM2 (2012) treated here in Hymenothrix; Arida in Leucosyris; Bahia in Picradeniopsis; Eucephalus in Doellingeria. Unabridged Note: Largest family of vascular plants in California and of eudicots globally. eFlora Treatment Author: David J. Keil, except as noted Scientific Editor: David J. Keil, Bruce G. Baldwin.
Common Name: BRICKELLBUSH Habit: [Annual] perennial herb to shrub. Leaf: simple, alternate or opposite, generally resinous-dotted, veiny, main veins generally 3. Inflorescence: heads discoid, generally clustered; involucre cylindric to bell-shaped; phyllaries generally graduated, +- green, veiny-striate, spreading in age; receptacle generally flat, epaleate. Flower: corolla cylindric, +- white to pale yellow-green, occasionally tinged red or purple; anther tip ovate; style branches long, club-shaped, tips rounded. Fruit: 10-ribbed, generally cylindric, generally hairy; pappus of 10--40+ generally minutely barbed bristles, generally white. Etymology: (John Brickell, early botanist in Georgia) eFlora Treatment Author: Randall W. Scott Reference: Scott 2006 FNANM 21:491--507 Unabridged Reference: King & Robinson 1987 Monogr Syst Bot Missouri Bot Gard 22:220--224
Habit: Shrub 20--50 cm. Stem: densely branched, minutely glandular. Leaf: alternate or opposite, petiole 0--3 mm, blade deltate, lanceolate, or ovate, generally sharply dentate or dentate-serrate (entire), base acute to truncate or cordate, tip acute to acuminate, faces glabrous or puberulent, often strigose, or with mix of erect glandular and glandless hairs. Inflorescence: heads 1 on short leafy branches; peduncle 10--70 mm, with small, sharp bristles and gland-tipped hairs; involucre 10--15 mm cylindric to widely bell-shaped; phyllaries 24--33, +- equal or graduated in 3--4 series, striate, acute to acuminate, margin narrowly scarious, outer often bright green, 4--16-striate, lance-linear to widely ovate, inner pale green, 3--4-striate, linear or narrowly lanceolate, minutely scabrous, often glandular. Flower: 40--90; corolla 6--8 mm, pale yellow-green or cream, often purple-tinged. Fruit: 3--5.5 mm, minutely scabrous; pappus bristles 18--25, smooth or short-barbed. Note: Varieties intergrade.
Brickellia atractyloides A. Gray var. arguta (B.L. Rob.) Jeps.
NATIVE Leaf: blade 10--20 mm, 5--15 mm wide, ovate, dentate to serrate, strigose, or with mix of erect glandular and glandless hairs. Inflorescence: outer phyllaries lance-ovate to -linear, +- entire, 6--10-striate, inner linear, +- papery. Flower: 40--55; corolla cream, often purple-tinged. Chromosomes: 2n=18. Ecology: Mtn slopes, washes; Elevation: 100--1500 m. Bioregional Distribution: D; Distribution Outside California: to Nevada, Arizona, Baja California. Flowering Time: Apr--Jun Synonyms: Brickellia arguta B.L. Rob. var. arguta Unabridged Synonyms: Brickellia arguta B.L. Rob.; Coleosanthus argutus (B.L. Rob.) S.F. Blake Jepson eFlora Author: Randall W. Scott Reference: Scott 2006 FNANM 21:491--507 Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Brickellia atractyloides Next taxon: Brickellia atractyloides var. atractyloides
Botanical illustration including Brickellia atractyloides var. arguta
Citation for this treatment: Randall W. Scott 2012, Brickellia atractyloides var. arguta, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=6893, accessed on December 03, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on December 03, 2024.
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Duplicates counted once; synonyms included.
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Blue line denotes eFlora flowering time (fruiting time in some monocot genera).