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Washington hawthorn, Washington thorn

batesburg hawthorn

Habit Trees, 40–100 dm. Shrubs, stiff, compact, 5–20 dm, branches not weeping except in larger specimens.
Stems

3-year old twigs shiny, deep reddish brown, older dark gray;

thorns on twigs ± straight, 2–5 cm.

twigs: new growth green, densely appressed-pubescent, 1-year old purple brown-gray, slender;

thorns on twigs numerous, ± straight, 2-years old purple-brown, slender, 1–3 cm.

Leaves

petiole slender, sometimes both abaxially and adaxially short rusty-tomentose, eglandular;

blade broadly to narrowly deltate, 3–6 cm, base truncate to rarely cuneate or cordate, sometimes very shallowly so, lobes palmately or pinnately 2(or 3) per side, margins serrulate, veins 6 or 7(or 8) per side (to sinuses), apex acute, surfaces glabrous.

deciduous;

stipules approximately obtriangular, thin;

petiole length 0–28% blade, winged distally, pubescent only young, glandular;

blade dark green young, narrowly obovate to cuneate or oblanceolate, 0.8–1.8 cm, thin to subchartaceous, base narrowly cuneate, lobes 0 or 3 per side distally, obscure, margins serrulate-crenate (distal 1/2), teeth glandular, veins 1 or 2 per side (exiting beyond widest part of leaf), apex usually obtuse, rarely acute, shiny mature, surfaces sparsely pubescent, abaxial ± densely pubescent near vein axils.

Inflorescences

15–30-flowered, flowers strong-smelling;

branches glabrous;

bracteole margins stipitate-glandular.

1- or 2(or 3)-flowered;

branches ± sparsely appressed-pubescent;

bracteoles linear, margins sessile-glandular.

Flowers

10–12 mm diam.;

hypanthium glabrous;

sepals 2 mm;

stamens 20, anthers ivory;

styles 3(or 4).

12–15 mm diam.;

hypanthium pubescent;

sepals triangular, margins glandular, abaxially pubescent;

anthers ivory, rarely light purple;

styles 3–5.

Pomes

red, suborbicular, 7–8 mm diam., glabrate;

sepal remnants appressed;

pyrenes 3–5.

2n

= 51, 68.

= 68.

Crataegus phaenopyrum

Crataegus munda

Phenology Flowering Jun; fruiting Sep–Nov. Flowering Mar–Apr; fruiting Jul–Aug.
Habitat Woodland edges, gaps, scrub, damp locations Sandy soil, open brush or among pines
Elevation 10–300 m (0–1000 ft) 0–200 m (0–700 ft)
Distribution
from FNA
AR; DE; FL; GA; IL; IN; KY; LA; MD; MI; MO; MS; NC; OH; OR; PA; SC; TN; VA; WA; WV; ON
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; FL; GA; MS; NC; SC; VA
Discussion

Crataegus phaenopyrum has a wide native range across the middle latitudes of the United States from Missouri to Maryland and southward but is not particularly abundant. In the northern and western states and Ontario, it is introduced. All alleged specimens for Alabama proved to be wrongly identified (J. B. Phipps 1998).

The flowering season of the Washington thorn is the latest of all North American hawthorns. The species is one of the most widely planted ornamentals in the genus, being elegantly treelike and possessing beautiful, remarkably rust-resistant foliage at all seasons as well as attractive flowers and fruit. Several cultivars are known.

Crataegus cordata (Miller) Aiton 1789 (= Mespilus cordata Miller 1757) was commonly used for C. phaenopyrum until the early 20th century (J. B. Phipps 1999).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Crataegus munda is one of the most widespread species in the series; it occurs from central Florida and southeastern Alabama to North Carolina with scarce outliers in Mississippi (Forest and Jones counties) and Virginia (Nansemond County).

Crataegus munda, like C. lepida, has a stiff, compact habit and usually lacks the weeping branches typical of the series; both are among the few species of hawthorn that regularly flower at under 1 m tall. Herbarium specimens of C. munda somewhat resemble C. lacrimata, but have shorter petioles, hairy young pedicels, and are more likely to have acute leaves with more pronounced marginal teeth. Some similarities may also exist to narrower-leaved forms of C. crocea, which has more pendant leaves with at most denticulate margins, usually much longer petioles, and nearly tomentose inflorescences and hypanthia.

A similar form, perhaps Crataegus geniculata Ashe, with usually larger, more sharply toothed leaves, 3 or 4 veins per side, larger flowers with less hairy pedicels, and subpyriform fruit, has been found in northeastern Georgia.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 9, p. 499. FNA vol. 9, p. 623.
Parent taxa Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus > sect. Crataegus > ser. Cordatae Rosaceae > subfam. Amygdaloideae > tribe Maleae > Crataegus > sect. Coccineae > ser. Lacrimatae
Sibling taxa
C. aemula, C. aestivalis, C. alabamensis, C. alleghaniensis, C. annosa, C. aprica, C. aquacervensis, C. ashei, C. atrovirens, C. attrita, C. austromontana, C. beata, C. berberifolia, C. biltmoreana, C. brachyacantha, C. brainerdii, C. brazoria, C. brittonii, C. buckleyi, C. calpodendron, C. castlegarensis, C. chrysocarpa, C. coccinea, C. coccinioides, C. cognata, C. collina, C. colonica, C. communis, C. compacta, C. condigna, C. craytonii, C. crocea, C. crus-galli, C. cupressocollina, C. delawarensis, C. dispar, C. dodgei, C. douglasii, C. egens, C. egregia, C. enderbyensis, C. erythropoda, C. exilis, C. eximia, C. extraria, C. fecunda, C. flabellata, C. flava, C. florens, C. floridana, C. florifera, C. fluviatilis, C. formosa, C. frugiferens, C. furtiva, C. gattingeri, C. gaylussacia, C. gilva, C. greggiana, C. harbisonii, C. holmesiana, C. ignava, C. incilis, C. integra, C. intricata, C. invicta, C. iracunda, C. irrasa, C. jesupii, C. jonesiae, C. lacrimata, C. laevigata, C. lanata, C. lancei, C. lanuginosa, C. lassa, C. laurentiana, C. leonensis, C. lepida, C. levis, C. lumaria, C. macracantha, C. macrosperma, C. magniflora, C. margarettae, C. marshallii, C. mendosa, C. meridiana, C. mira, C. mollis, C. monogyna, C. munda, C. nananixonii, C. neobushii, C. nitida, C. oakesiana, C. okanaganensis, C. okennonii, C. opaca, C. opima, C. orbicularis, C. ouachitensis, C. padifolia, C. pennsylvanica, C. persimilis, C. pexa, C. phippsii, C. pinetorum, C. populnea, C. prona, C. pruinosa, C. pulcherrima, C. punctata, C. purpurella, C. quaesita, C. reverchonii, C. rivularis, C. rivuloadamensis, C. rivulopugnensis, C. roribacca, C. rubella, C. rubribracteolata, C. saligna, C. sargentii, C. scabrida, C. schizophylla, C. schuettei, C. segnis, C. senta, C. sheila-phippsiae, C. sheridana, C. shuswapensis, C. sororia, C. spathulata, C. spes-aestatum, C. stolonifera, C. stonei, C. submollis, C. suborbiculata, C. succulenta, C. tecta, C. teres, C. texana, C. tracyi, C. triflora, C. turnerorum, C. uniflora, C. ursopedensis, C. venusta, C. viridis, C. visenda, C. wattiana, C. williamsii, C. wootoniana, C. ×atrorubens, C. ×bicknellii, C. ×coleae, C. ×collicola, C. ×disperma, C. ×dispessa, C. ×fretalis, C. ×incaedua, C. ×kelloggii, C. ×latebrosa, C. ×lucorum, C. ×rufula, C. ×sicca, C. ×vailiae
C. aemula, C. aestivalis, C. alabamensis, C. alleghaniensis, C. annosa, C. aprica, C. aquacervensis, C. ashei, C. atrovirens, C. attrita, C. austromontana, C. beata, C. berberifolia, C. biltmoreana, C. brachyacantha, C. brainerdii, C. brazoria, C. brittonii, C. buckleyi, C. calpodendron, C. castlegarensis, C. chrysocarpa, C. coccinea, C. coccinioides, C. cognata, C. collina, C. colonica, C. communis, C. compacta, C. condigna, C. craytonii, C. crocea, C. crus-galli, C. cupressocollina, C. delawarensis, C. dispar, C. dodgei, C. douglasii, C. egens, C. egregia, C. enderbyensis, C. erythropoda, C. exilis, C. eximia, C. extraria, C. fecunda, C. flabellata, C. flava, C. florens, C. floridana, C. florifera, C. fluviatilis, C. formosa, C. frugiferens, C. furtiva, C. gattingeri, C. gaylussacia, C. gilva, C. greggiana, C. harbisonii, C. holmesiana, C. ignava, C. incilis, C. integra, C. intricata, C. invicta, C. iracunda, C. irrasa, C. jesupii, C. jonesiae, C. lacrimata, C. laevigata, C. lanata, C. lancei, C. lanuginosa, C. lassa, C. laurentiana, C. leonensis, C. lepida, C. levis, C. lumaria, C. macracantha, C. macrosperma, C. magniflora, C. margarettae, C. marshallii, C. mendosa, C. meridiana, C. mira, C. mollis, C. monogyna, C. nananixonii, C. neobushii, C. nitida, C. oakesiana, C. okanaganensis, C. okennonii, C. opaca, C. opima, C. orbicularis, C. ouachitensis, C. padifolia, C. pennsylvanica, C. persimilis, C. pexa, C. phaenopyrum, C. phippsii, C. pinetorum, C. populnea, C. prona, C. pruinosa, C. pulcherrima, C. punctata, C. purpurella, C. quaesita, C. reverchonii, C. rivularis, C. rivuloadamensis, C. rivulopugnensis, C. roribacca, C. rubella, C. rubribracteolata, C. saligna, C. sargentii, C. scabrida, C. schizophylla, C. schuettei, C. segnis, C. senta, C. sheila-phippsiae, C. sheridana, C. shuswapensis, C. sororia, C. spathulata, C. spes-aestatum, C. stolonifera, C. stonei, C. submollis, C. suborbiculata, C. succulenta, C. tecta, C. teres, C. texana, C. tracyi, C. triflora, C. turnerorum, C. uniflora, C. ursopedensis, C. venusta, C. viridis, C. visenda, C. wattiana, C. williamsii, C. wootoniana, C. ×atrorubens, C. ×bicknellii, C. ×coleae, C. ×collicola, C. ×disperma, C. ×dispessa, C. ×fretalis, C. ×incaedua, C. ×kelloggii, C. ×latebrosa, C. ×lucorum, C. ×rufula, C. ×sicca, C. ×vailiae
Synonyms Mespilus phaenopyrum, C. youngii
Name authority (Linnaeus f.) Medikus: Gesch. Bot., 84. (1793) Beadle: Biltmore Bot. Stud. 1: 38. (1901)
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