scrubby

1. Covered with or consisting of scrub or underbrush.
2. Straggly or stunted.
3. Paltry or shabby; wretched.

adjective

Showing signs of wear and tear or neglect: bedraggled, broken-down, decaying, decrepit, dilapidated, dingy, down-at-heel, faded, mangy, rundown, scruffy, seedy, shabby, shoddy, sleazy, tattered, tatty, threadbare. Informal tacky². Slang ratty. Idioms: all the worse for wear, gone topotseed, pastcurehope. See better/worse.

The adjective has 2 meanings:

Meaning #1: sparsely covered with stunted trees or vegetation and underbrush
  Synonym: scrabbly

Meaning #2: inferior in size or quality
  Synonyms: scrawny, stunted