Contains 15 genera and 48 accepted taxa overall.
This family is completely databased for all specimens.
Characteristics
ROSACEAE
Dicot
-
Classification
ROSALES
ROSACEAE
Genera
| Genus | Common Name | Taxa Count | Herbarium Specimens | Photos |
|---|---|---|---|---|
| Agrimonia | AGRIMONY | 2 | ||
| Amelanchier | SERVICEBERTY | 1 | ||
| Aphanes | PARSLEY PIERT | 1 | ||
| Aronia | CHOKEBERRY | 1 | ||
| Crataegus | HAWTHORN | 10 | ||
| Eriobotrya | LOQUAT | 1 | ||
| Fragaria | STRAWBERRY | 1 | ||
| Malus | APPLE | 1 | ||
| Physocarpus | NINEBARK | 1 | ||
| Potentilla | CINQUEFOIL | 4 | ||
| Prunus | PLUM; CHERRY | 9 | ||
| Pyracantha | FIRETHORN | 2 | ||
| Pyrus | PEAR | 2 | ||
| Rosa | ROSE | 7 | ||
| Rubus | BLACKBERRY | 5 |
Identification Key
1. Herb
2
1. Vine, shrub, or tree
6
2. Leaves simple, the blade palmately lobed
2. Leaves compound with 3 or more leaflets
3
3. Leaves 3-foliolate; fruit succulent and red, with several attached achenes
4
3. Leaves usually with more than 3 leaflets; fruit dry, of several achenes
5
4. Stolons not leafy; flowers arising from leaf rosette; petals white
4. Stolons leafy; flowers arising from the stolons; petals yellow
5. Leaves pinnately compound; achenes 2 per fruit, surrounded by a hypanthium with hooked bristles
5. Leaves palmately compound; achenes several per fruit, inserted on an enlarged receptacle
6. Stems usually armed with prickles; leaves compound
7
6. Stems without prickles, sometimes with thorns; leaves simple
8
7. Lateral veins of leaflet underside usually obscure or scarcely pronounced; fruit with a smooth, continuous surface formed from the hypanthium, fleshy, encasing the achenes
7. Lateral veins of leaflet underside pronounced and obvious; fruit an aggregate of individual succulent drupes, all attached to the central receptacle
8. Glandular, reddish to dark trichomes present along the midrib of the leaf blade upper surface
8. Without glandular trichomes along the midrib of the leaf blade upper surface
9
9. Young tissues with stellate hairs; leaf blade palmately 3(-5)-veined at the base, the veins generally arising at the blade and petiole junction
9. Stellate hairs lacking; leaf blade not palmately veined at the base, principal lateral veins usually borne on the blade above the petiole
10
10. Leaf blades mostly 12-30 cm long; seeds 13-18 mm long
10. Leaf blades mostly 1.5-13 cm long; seeds <10 mm long
11
11. Leaf blade ovate, deltoid, spatulate, to obovate, sometimes lobed, coarsely toothed (sometimes only in the upper half)
12
11. Leaf blade oblong, spatulate, broadly ovate, to lanceolate, unlobed, finely toothed to entire or coarsely prickly (if coarsely toothed, then the blade ovate to lanceolate)
13
12. Plant sometimes with branched thorns; stems mostly not glaucous; endocarp hard and bony, separating with difficulty from the seed
12. Plant without thorns or with unbranched thorns; stems glaucous; endocarp cartilaginous to membranaceous, easily separated from the seed
13. Leaf blade oblong, narrowly elliptic, to spatulate
13. Leaf blade broadly ovate to narrowly lanceolate
14
14. Leaf blade generally broadly ovate, 0.8-1.6 times longer than wide
14. Leaf blade ovate, narrowly lanceolate, to lanceolate, 1.5-3 times longer than wide
15
15. Leaf blade entire to coarsely toothed or lobate
16
15. Leaf blade finely toothed
17
16. Larger leaf blades to 5.2 cm long, to 2.6 cm wide, entire to coarsely toothed
16. Larger leaf blades 5-10 cm long, 2-4 cm wide, entire to coarsely prickly
17. Leaf blade base mostly broadly rounded, truncate, to cordate
17. Leaf blade base mostly acute
18
18. Leaf blade entire, prickly, serrate-dentate, to finely sharply serrate; style 1 per flower; ovary superior; fruit a drupe
18. Leaf blade crenate-dentate; styles 5 per flower; ovary inferior; fruit a pome