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Populus fremontii S. Watson
FREMONT COTTONWOOD
Life   Plantae   Dicotyledoneae   Salicaceae   Populus


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FamilyScientific name @ source (records)
Aphididae  Anoecia querci @ NCSU_ENT (1)

Chaitophorus neglectus @ NCSU_ENT (4)

Chaitophorus populicola @ AMNH_PBI (6); NCSU_ENT (12); CSCA_TCN (4)

Chaitophorus @ CSCA_TCN (2)

Pemphigus betae @ AMNH_PBI (1)

Pemphigus populiramulorum @ NCSU (28)

Pemphigus populitransversus @ AMNH_PBI (4); CSCA_TCN (6)

Pemphigus @ AMNH_PBI (2); CSCA_TCN (4)

Thecabius ( @ NCSU (7)
Botryosphaeriaceae  Phyllosticta brunnea @ BPI (1)
Cicadellidae  Empoasca solana @ III (1)

Kybos copula @ III (1)

Kybos obtusa @ III (1)
Dermateaceae  Gloeosporium carpogenum @ 394177B (1); 394177A (1)

Marssonina brunnea @ BPI (2)

Marssonina populi @ BPI (3)
Diaspididae  Diaspidiotus aesculi @ CSCA_TCN (1)
Gelechiidae  Filatima @ UCRC_ENT (2)
Melampsoraceae  Melampsora laricis-populina @ BPI (1)

Melampsora medusae @ BPI (1)

Melampsora occidentalis @ BPI (3)

Melampsora populina @ BPI (1)

Melampsora @ BPI (1)
Miridae  Agnocoris @ AMNH_ENT (7)
Mycosphaerellaceae  Septoria musiva @ BPI (4)

Septoria populi @ BPI (1)
Polyporaceae  Fomes igniarius @ BPI (1)

Poria latemarginata @ BPI (1)

Trametes hispida @ BPI (3)

Trametes stuppea @ BPI (1)
Schizophyllaceae  Schizophyllum commune @ BPI (1)
Sclerotiniaceae  Septotinia populiperda @ BPI (1)
Valsaceae  Cytospora chrysosperma @ BPI (8)

Cytospora nivea @ BPI (1)
_  Trichothecium roseum @ BPI (1)

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Following modified from Virginia Tech Dendrology
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Following modified from Flora of North America
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FNA Vol. 7 Page 5, 7, 10, 11, 12, 13 , 14, 16, 17, 19 , 20 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 7 | Salicaceae | Populus

6. Populus fremontii S. Watson, Proc. Amer. Acad. Arts. 10: 350. 1875.

Fremont cottonwood

Plants to 30 m, 37 dm diam.; strongly heterophyllous, (often 2 or more trunks near base). Bark pale tan, deeply furrowed. Branchlets tannish brown, becoming paler tan to bone- white by third year, round, 1-3(-5) mm diam., slender to coarse, glabrous, glabrate, or sparsely to densely hairy, (yellowish). Winter buds yellow-brown, usually densely stiffly hairy, resinous (resin yellow); terminal buds (4-)7-11(-14) mm; flowering buds separated on branchlets, (5-)11-18(-22) mm. Leaves : petiole distally flattened at right angle to plane of blade, 1-6(-9) cm, 3/5-3/4 blade length; blade rhombic-ovate to broadly triangular-ovate, (1.5-)4-8 (-14) × (1.5-)3-8(-11) cm, w/l = 3/5-1/1, base cuneate to truncate or cordate, basilaminar glands 0, margins translucent, ciliate, apex short- to long-acuminate, surfaces yellowish green, resin stains not evident, glabrous or densely hairy; preformed blade margins coarsely crenate-serrate midblade, teeth 3-10(-15) on each side (graded, rounded), sinuses (0.2-)0.5-4(-5.5) mm deep; neoformed blade margins finely crenate-serrate much of margin, teeth (10-)20-30(-45) on each side, sinuses 0.1-1 mm deep. Catkins loosely (10-)15-25(-35)-flowered, (3-)4.5-10(-14 in fruit) cm; floral bract apex deeply cut, not ciliate. Pedicels 1-4 (-5.5 in fruit) mm. Flowers: discs broadly cup-shaped, not obviously oblique, entire, (2.5-)4-7(-9) mm diam.; stamens (30-)40-60(-70); anthers truncate; ovary 2-4-carpelled, spherical; stigmas 2-4, flat, platelike, expanded. Capsules spherical, (5-)6-11 mm, glabrous, 2-4-valved. Seeds 9-15(-25) per placenta. 2 n = 38.

Subspecies 2 (2 in the flora): sw United States, n Mexico.

Updated: 2024-07-21 12:55:31 gmt
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