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Aconogonon alpinum (All.) Schur
Polygonum alpinum All.

21 photos.
The "Alaska wild rhubarb", "alpine knotweed" or "alpine smartweed" is tall stately weed found
along roadsides and disturbed streambeds.

ITIS Taxonomic Serial No. 823768








1.  Mid June.  A plant in bloom.

2.  Late June.  A plant just after sprouting
before the leaves have turned green.

3.  Late June.  Basal Leaves.

4.  Mid-June.  Large broad basal leaf.

5.  Mid-June.  Young plant with basal leaves
and long taproot.

6.  Mid-June. Panicle of young plant in bud stage.

7.  Late June.  Panicle at very early stage
before elongation.

8.  Late June.  Two plants.  Plant at back is
the one shown in photo 7.

9.  Late June.  Mid-section of a plant
showing jointed stem and blossoms and
branches emerging from leaf axils.

10.  Late June.  Two entire plants except for
taproots. Photos 11-15 are also of parts
of these plants.

11. Late June.  Root section with broken

12.  Late June.  Stem showing joints and

13.  Late June.  Front side of a single leaf.

14.  Late June.  Back side of the same leaf.

15.  Late June.  Upper section of a panicle.
Note the linear leaves.

16.  Mid-June.  Upper section of a panicle.

17.  Early August.  Panicle tip beginning to dry.

18.  Mid-August.  Several dying plants.

19.  Mid August.  Dried panicle tip.

20.  Early September.  Another dried panicle tip.

21.  June 3, 2011.  Sprouting plants, still red
before the development of chlorophyll.


Photos 1, 4 and 16 taken on the Ketchem Rocks.
A series of granite tors located
six miles south of Central, Alaska.
65°  29.1' N,  144° 45.2' W
Elev. 1300 ft.

Photos 2, 3 and 5-8 near upper Half Dollar
65° 25.51' N, 144° 46.60' W
Elev. 2000 ft.

Photos 9-15 and 17 taken along Upper Bottom
Dollar Road.
65°  25.2' N,   144°  48.5' W
Elev. 1900 ft.

Photos 18 and 19 taken between 3 mile
and 5 mile Portage Creek Road.

Photo 20 taken on the Central
side of Eagle Summit.
65°  30.08' N,   145°  22.84' W
Elev. 3700 ft.