Family: Aristolochiaceae
Compound: Ari wat
Synonyms: Aristolochia porphyrophylla
Geographic Origin: SW US, NW Mexico
Characteristics: A small, perennial plant with trailing or vining stems growing from a large tap
root. The above ground growth may die back, and come back from the root. Leaves are
arranged alternately on the stems. Leaves are arrow, or heart shaped, from green to dark
purple or red, with distinct veins. Flowers are very distinct, with a short, curved tube and a
wide, oval shaped opening at the end. The rims of the flower opening are curled over, and dark
red/brown. The rest of the flower is green with washes of rusty red/brown and dark speckling.
Small hairs cover the flower. Fruits are ribbed capsules with many flat, black seeds that spill out
when the capsule peels open.
Natural History: Common in mesquite bosques, but also found on bajadas or rocky slopes.
Often growing in the shade of other plants, though may be found in full sun as well. Flowers
from spring to fall.
Cultivation Notes: Occasionally available at local nurseries, this plant is a great addition to the
understory of a native landscape or garden. Its ornate leaves, and bizarre and beautiful flowers
add interest to the garden and support native wildlife such as the caterpillar of the pipevine
swallowtail butterfly. Little information on propagation is available online. Try placing seeds on
the surface of the soil in partial sun and keeping moist. Soaking seeds for 12-24 hours before
placing on the soil’s surface may increase germination rate.
For plant propagation information, click here
Ethnobotany: Used to aid in childbirth and other medicinal uses
Citations:
Southwest Desert Flora
https://southwestdesertflora.com/WebsiteFolders/All_Species/Aristolochi…%
20watsonii,%20Watson's%20Dutchman's%20Pipe.html
Arizona Sonora Desert Museum
https://www.desertmuseum.org/books/nhsd_aristolochiaceae.php