ALLIONIACEAE— MALVACEAE 



(2) Tall, erect, 5-10 dm. high 

 2. Flowers in terminal clusters 



a. Leaves lance-shaped to ovate 



(1) Leaves dotted and sharp to the taste 



(2) Leaves neither dotted nor sharp 



Ices nodding 

 (x) 1. : flowers pink; stamens 7 



(v) Leaves long lanceolate; flowers flesh-colored; stamens 6 

 y. Spikes erect 



lowers bright pink; stamens 8 

 (y) Flowers greenish-pink ; stamens 6 



1 low ers white 



b. Leaves heart-shaped or arrow-shaped; twining or climbing 

 (1) Calyx winged in fruit 



(2) Calyx not winged 



arrow-shaped, sour 



Rumex — Dock, Sorrel 



<I, at. rumex, sorrel) 



P. tenue 



•piper: smart- 

 weed 



P. orientate: prince's ■ 



feather 

 P. lapathifolium 



P. pennsilvdnicunt 

 P. persicdria: lady's 

 thumb 



P. bistort a: bistorla 



P. scdndens: climbing 



buckwheat 

 P. convolvulus: bindweed 



R. acetosella: sheep 

 sorrel 



R. crispus: dock 



R. obtusifolius: dock 



R. rhaponlicum 



2. Leaves lance-oblong, somewhat bitter 



a. Leaves curled at edges ; valves of flower grain-bearing 



b. Leaves hardly curled; usually 1 valve grain-bearing 



Rheum — Rhubarb, Pie-plant 



(Gr. rheon, name of a medicinal plant) 

 Leaves large, rounded, petiole fleshy, sour ; flowers white 



Allioniaceae — Four O'Clock Family 

 Herbs with simple leaves; sepals 5, united into a bright corolla-like tube, petals 0, stamens 3-5, 

 ovary 1 -celled, fruit 1-seeded, achene-like, enclosed in the base of the calyx; flower syncarpous, 

 synsepalous, apetalous, apparently epigynous, usually regular. 



1. Flowers many in an involucre of 5 separate bracts Abronia 



2. Flowers few in a 5-lobed involucre; stamens 3 Allionia 



3. Flowers single in a 5-parted involucre; stamens 5 Mirabilis 



Abronia — Abronia 



(Gr. abros, pretty, which the flowers are) 



1. Stems prostrate; flowers day-blooming, rose-purple 



2. Stems ascending; flowers night-blooming, white 



Allionia — Wild Four O'Clock 



( Named for the Italian botanist, Allioni) 



1. Leaves ovate, petioled 



2. Leaves oblong, lance-shaped or linear 



a. Leaves oblong to lance-shaped, hairy 



b. Leaves linear, smooth 



A. umbellata 

 A. frdgrans 



A. nyctaginea 



A. hirsuta 

 A. linearis 



Mirabilis— Four O'Clock, Marvel-of-Peru 



(Lat. mirabilis, wonderful, from the beautiful night-blooming flowers) 

 Leaves ovate, entire ; flowers varicolored M. jaldpa 



Malvales Mallow Order 



Malvaceae — Mallow Family 

 Herbs or shrubs, with alternate, simple, often lobed leaves ; sepals 5, petals 5, stamens many, 

 united by their filaments, ovaries several to many, separate or usually united, often falling away as 

 one-seeded fruits, or the fruit a capsule. 



